Female Reproductive System Overview

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Questions and Answers

What hormone is primarily suppressed by contraception methods?

  • Oxytocin
  • Luteinizing hormone (LH) (correct)
  • Testosterone
  • Estrogen

What is the main task of the female reproductive system?

  • Producing gametes and facilitating procreation (correct)
  • Producing insulin
  • Transmitting nerve signals
  • Regulating blood pressure

What defines a woman's reproductive years?

  • Between menarche and menopause. (correct)
  • During menopause.
  • From birth to menarche.
  • From conception to birth.

What type of epithelium is found in the endocervix?

<p>Simple columnar epithelium (B)</p> Signup and view all the answers

How long does a typical gestation period last?

<p>9 months (B)</p> Signup and view all the answers

Which process follows fertilization of the egg?

<p>Gestation (B)</p> Signup and view all the answers

What influences the proliferation of epithelial mucosa cells in the vagina?

<p>Presence or absence of estrogen (A)</p> Signup and view all the answers

What characterizes the transformation zone in the female reproductive system?

<p>Most common site for cervical cancer (C)</p> Signup and view all the answers

What is a primary role of estrogen throughout the reproductive cycle?

<p>Exerting negative feedback on the hypothalamus (B)</p> Signup and view all the answers

What happens to primary oocytes during the menstrual cycle?

<p>They remain arrested in prophase I until menarche. (C)</p> Signup and view all the answers

What is the role of GnRH during ovulation?

<p>It increases LH surge frequency. (A)</p> Signup and view all the answers

What is the structure that forms after a Graafian follicle expels its ovum?

<p>Corpus luteum. (D)</p> Signup and view all the answers

Which phase of the menstrual cycle is characterized by low serum levels of estradiol and progesterone?

<p>Follicular phase. (C)</p> Signup and view all the answers

What marks the beginning of the luteal phase of the menstrual cycle?

<p>LH surge. (B)</p> Signup and view all the answers

During fertilization, what stage does an oocyte resume meiosis?

<p>Metaphase II. (D)</p> Signup and view all the answers

The area medial to the labia minora, which includes the urethra and vaginal openings, is known as?

<p>Vulvar vestibule. (C)</p> Signup and view all the answers

What structure in the fallopian tubes helps in capturing the expelled oocyte?

<p>Fimbria. (C)</p> Signup and view all the answers

What is characterized by the transition from columnar to squamous epithelium in the cervix?

<p>Transformation zone. (D)</p> Signup and view all the answers

During which phase of the menstrual cycle does the endometrial lining thicken in preparation for potential implantation?

<p>Luteal phase. (B)</p> Signup and view all the answers

What occurs approximately 36 hours after the LH surge?

<p>The oocyte is released from the dominant follicle. (B)</p> Signup and view all the answers

What hormone does the corpus luteum primarily release?

<p>Progesterone (C)</p> Signup and view all the answers

What is the definition of infertility?

<p>Failure to achieve pregnancy after 1 year of unprotected intercourse. (C)</p> Signup and view all the answers

What is fecundability?

<p>The ability to conceive. (B)</p> Signup and view all the answers

Which factors can lead to infertility?

<p>Both female and male factors. (C)</p> Signup and view all the answers

What hormone maintains the corpus luteum if fertilization occurs?

<p>Chorionic gonadotropin (C)</p> Signup and view all the answers

What is the primary function of progesterone in the menstrual cycle?

<p>Promoting the formation of the secretory endometrium. (B)</p> Signup and view all the answers

What percentage represents the probability of conceiving during timed intercourse?

<p>16% to 28% (A)</p> Signup and view all the answers

Which of the following is the most common female factor leading to infertility?

<p>Endometriosis (B)</p> Signup and view all the answers

What happens to estradiol and progesterone levels if fertilization does not occur?

<p>They decline. (A)</p> Signup and view all the answers

What occurs to most oogonia after forming primary oocytes?

<p>They perish with few surviving as primary oocytes. (C)</p> Signup and view all the answers

What is the primary site for cervical cancer sampling?

<p>Transformation zone (A)</p> Signup and view all the answers

During which stage are oocytes arrested at the time of fertilization?

<p>Metaphase II (D)</p> Signup and view all the answers

What role does estrogen play in the proliferation of epithelial mucosa cells in the vagina?

<p>Influences cell proliferation (D)</p> Signup and view all the answers

What structure surrounds each primary oocyte in the ovary?

<p>Granulosa and theca cells (A)</p> Signup and view all the answers

Which of these organs facilitates menstruation and procreation?

<p>Female reproductive system (B)</p> Signup and view all the answers

What is the primary function of the cervix in the female reproductive system?

<p>Acts as a conduit between the uterus and vagina (A)</p> Signup and view all the answers

What typically occurs during the luteal phase of the menstrual cycle?

<p>Secretion of progesterone (D)</p> Signup and view all the answers

What happens to the dominant follicle after ovulation if fertilization does not occur?

<p>It degenerates into a corpus albicans. (A)</p> Signup and view all the answers

What is the relationship between ovulation and the release of luteinizing hormone (LH)?

<p>Ovulation occurs after the LH surge (D)</p> Signup and view all the answers

What signifies the transition from the follicular phase to the luteal phase in the menstrual cycle?

<p>LH surge occurs (B)</p> Signup and view all the answers

What is the role of estradiol during the follicular phase of the menstrual cycle?

<p>Stimulating follicular maturation (D)</p> Signup and view all the answers

What occurs to the female reproductive organs during puberty?

<p>Breast tissue and mammary duct development (A)</p> Signup and view all the answers

Which structure within the fallopian tubes aids in the movement of the oocyte towards the uterus?

<p>Fimbria (A)</p> Signup and view all the answers

Which statement is accurate about the function of the hypothalamus in the female reproductive system?

<p>It regulates gonadotropin-releasing hormone. (A)</p> Signup and view all the answers

What layer of the uterus is the body of the uterus known as?

<p>Corpus (C)</p> Signup and view all the answers

What happens to the ovary during the reproductive years from menarche to menopause?

<p>Production of gametes (D)</p> Signup and view all the answers

How is gestation defined in relation to infant development?

<p>Duration of pregnancy until birth (D)</p> Signup and view all the answers

What triggers the thickening of the endometrium during the menstrual cycle?

<p>Increasing estradiol levels (A)</p> Signup and view all the answers

What happens to the corpus luteum if fertilization does not occur?

<p>It degenerates into the corpus albicans (D)</p> Signup and view all the answers

What happens to the corpus luteum if fertilization does occur?

<p>It is maintained by chorionic gonadotropin. (D)</p> Signup and view all the answers

What is the primary effect of progesterone released by the corpus luteum?

<p>Inhibits the release of LH and FSH. (C)</p> Signup and view all the answers

What defines primary infertility?

<p>Never having conceived a child. (A)</p> Signup and view all the answers

Which of the following is a common female factor leading to infertility?

<p>Ovulatory disorders. (B)</p> Signup and view all the answers

What is the probability range of conceiving during timed intercourse?

<p>16% to 28% (C)</p> Signup and view all the answers

What occurs approximately 36 hours after the LH surge?

<p>The oocyte is expelled from the follicle. (A)</p> Signup and view all the answers

What happens to estradiol and progesterone levels if fertilization does not occur?

<p>They decline. (C)</p> Signup and view all the answers

Which hormone surge is primarily responsible for ovulation?

<p>LH. (B)</p> Signup and view all the answers

What is the role of chorionic gonadotropin after fertilization?

<p>Maintains the corpus luteum. (B)</p> Signup and view all the answers

What defines fecundability?

<p>The ability to conceive. (A)</p> Signup and view all the answers

What occurs approximately 36 hours after the LH surge?

<p>The oocyte is released from the dominant follicle (A)</p> Signup and view all the answers

What is the primary hormone released by the corpus luteum?

<p>Progesterone (B)</p> Signup and view all the answers

Which factor is not considered a common female cause of infertility?

<p>Asthma (C)</p> Signup and view all the answers

What is meant by fecundability?

<p>The ease of conceiving given optimal conditions (C)</p> Signup and view all the answers

If fertilization occurs, which hormone is released by the implanted oocyte?

<p>Chorionic gonadotropin (A)</p> Signup and view all the answers

What typically happens to estradiol and progesterone levels if fertilization does not occur?

<p>They both decline (B)</p> Signup and view all the answers

What defines primary infertility?

<p>Individuals who have never conceived (D)</p> Signup and view all the answers

What is the probability of conceiving during timed intercourse (ovulation)?

<p>16% to 28% (C)</p> Signup and view all the answers

Which of the following is a common procedure by which infertility can be diagnosed?

<p>Pelvic ultrasound (C)</p> Signup and view all the answers

What occurs to LH levels if fertilization does occur?

<p>They decline significantly (B)</p> Signup and view all the answers

What ensures that a federal government website is secure?

<p>The presence of https:// (C)</p> Signup and view all the answers

What is primarily produced by the female reproductive system?

<p>Gametes (eggs or ova) (D)</p> Signup and view all the answers

What typically happens during the menstrual cycle?

<p>Ovulation occurs (B)</p> Signup and view all the answers

What does the transformation zone in the female reproductive system primarily consist of?

<p>Squamocolumnar epithelium (D)</p> Signup and view all the answers

At what point does a woman typically experience menopause?

<p>After 12 consecutive months without menstruation (A)</p> Signup and view all the answers

What leads to the expulsion of the ovum from the Graafian follicle?

<p>Surge in LH levels (C)</p> Signup and view all the answers

What role does estrogen play in the female reproductive system?

<p>Promotes blood flow to tissues (A)</p> Signup and view all the answers

Which phase of the menstrual cycle immediately follows ovulation?

<p>Luteal phase (C)</p> Signup and view all the answers

What typically occurs during gestation?

<p>Embryos develop into mature fetuses (B)</p> Signup and view all the answers

The area where the urethra and vaginal openings are located is referred to as?

<p>Vulvar vestibule (B)</p> Signup and view all the answers

What effect does contraception have on hormone release?

<p>Suppresses gonadotropin-releasing hormone (GnRH) (A)</p> Signup and view all the answers

What happens to the breast tissue during puberty?

<p>It develops mammary ducts (D)</p> Signup and view all the answers

Which structure is responsible for progesterone secretion after fertilization?

<p>Corpus luteum (B)</p> Signup and view all the answers

What is the primary function of the cervix?

<p>Acts as a barrier during pregnancy (A)</p> Signup and view all the answers

What happens to the primary oocyte at the time of fertilization?

<p>It completes meiosis II (D)</p> Signup and view all the answers

When does menarche typically occur?

<p>During puberty (C)</p> Signup and view all the answers

What characterizes the follicular phase of the menstrual cycle?

<p>Increasing estradiol and FSH levels (A)</p> Signup and view all the answers

What is the primary function of the fallopian tubes?

<p>To transport oocytes to the uterus (C)</p> Signup and view all the answers

What occurs when no fertilization takes place after ovulation?

<p>The endometrial lining is shed (B)</p> Signup and view all the answers

Which part of the uterus is the fundus?

<p>Superior aspect of the uterine corpus (C)</p> Signup and view all the answers

What is the primary event triggered by the LH surge during ovulation?

<p>Expulsion of the ovum from the follicle (D)</p> Signup and view all the answers

At what stage are oocytes arrested at the time of ovulation?

<p>Metaphase II (D)</p> Signup and view all the answers

What primarily surrounds each primary oocyte in the ovary?

<p>Granulosa cells (B)</p> Signup and view all the answers

Which phase of the menstrual cycle begins after the LH surge?

<p>Luteal phase (C)</p> Signup and view all the answers

What is the primary function of the fimbria in the fallopian tubes?

<p>Capture expelled oocytes (D)</p> Signup and view all the answers

What primarily indicates the security of a federal government website?

<p>Use of 'https://' (D)</p> Signup and view all the answers

What marks the completion of meiosis I in oocytes?

<p>Becoming a Graafian follicle (A)</p> Signup and view all the answers

What is the function of the transformation zone in the female reproductive system?

<p>Site of Pap tests (B)</p> Signup and view all the answers

What defines the end of the follicular phase in the menstrual cycle?

<p>Ovulation occurs (D)</p> Signup and view all the answers

What triggers the regular expulsion of ova from the ovaries?

<p>The menstrual cycle (B)</p> Signup and view all the answers

Which hormone is primarily responsible for maintaining the corpus luteum after fertilization?

<p>Progesterone (C)</p> Signup and view all the answers

What occurs during menarche?

<p>First menstrual bleeding (D)</p> Signup and view all the answers

What is a characteristic of the female reproductive years?

<p>From menstruation to menopause (C)</p> Signup and view all the answers

What happens to the endometrium if fertilization does not occur?

<p>It is shed during menstruation (C)</p> Signup and view all the answers

What is the typical duration of gestation in humans?

<p>9 months (C)</p> Signup and view all the answers

What is a primary effect of estrogen in the female reproductive system?

<p>Promotes proliferation of epithelial cells in the vagina (D)</p> Signup and view all the answers

What happens to the corpus luteum if fertilization occurs?

<p>It continues to produce hormones (C)</p> Signup and view all the answers

What does contraception aim to inhibit in the female reproductive system?

<p>GnRH release from the hypothalamus (D)</p> Signup and view all the answers

During the female reproductive cycle, what is the typical function of progesterone?

<p>Thicken the endometrial lining (D)</p> Signup and view all the answers

What type of epithelium does the vagina proliferate in response to estrogen?

<p>Stratified squamous epithelium (B)</p> Signup and view all the answers

What event occurs approximately 36 hours after the LH surge?

<p>Oocyte release from the dominant follicle (B)</p> Signup and view all the answers

What is the primary function of the corpus luteum following ovulation?

<p>To release progesterone (D)</p> Signup and view all the answers

What hormone maintains the corpus luteum if fertilization occurs?

<p>Chorionic gonadotropin (C)</p> Signup and view all the answers

What is a common cause of female infertility, ranked highest in prevalence?

<p>Ovulatory disorders (B)</p> Signup and view all the answers

What is the term used to describe the ability to conceive?

<p>Fecundability (C)</p> Signup and view all the answers

If fertilization does not occur, what happens to progesterone levels?

<p>They decline (D)</p> Signup and view all the answers

What percentage represents the average likelihood of conceiving during timed intercourse?

<p>16% to 28% (B)</p> Signup and view all the answers

What is the definition of infertility in a clinical context?

<p>Failure to achieve pregnancy after 1 year (D)</p> Signup and view all the answers

What happens to LH and FSH levels following the release of progesterone by the corpus luteum?

<p>Both decrease (B)</p> Signup and view all the answers

What is primary infertility?

<p>Failure to achieve pregnancy after 1 year in those who have never conceived (D)</p> Signup and view all the answers

What process does estrogen exert on the hypothalamus during ovulation?

<p>Positive feedback to increase GnRH pulse frequency (B)</p> Signup and view all the answers

At what stage are oocytes arrested at the time of fertilization?

<p>Metaphase II (C)</p> Signup and view all the answers

Which part of the fallopian tube has the widest lumen?

<p>Ampulla (B)</p> Signup and view all the answers

Which structure surrounds each primary oocyte in the ovary?

<p>Primordial follicle (A)</p> Signup and view all the answers

What is the primary function of the cervix in the female reproductive system?

<p>Acting as a conduit between the vagina and uterus (D)</p> Signup and view all the answers

During which phase of the menstrual cycle does the dominant follicle mature into a Graafian follicle?

<p>Follicular phase (A)</p> Signup and view all the answers

What is the ovarian structure that forms after ovulation and releases progesterone?

<p>Corpus luteum (D)</p> Signup and view all the answers

What specifically defines the ending of the luteal phase?

<p>Menstrual bleeding (C)</p> Signup and view all the answers

What occurs to the dominant follicle if fertilization does not take place?

<p>It regresses to a corpus albicans (A)</p> Signup and view all the answers

What hormone surge triggers ovulation?

<p>LH (C)</p> Signup and view all the answers

What feature indicates that a website is official and secure?

<p>.gov or .mil domain endings (A)</p> Signup and view all the answers

What marks the end of a woman's reproductive years?

<p>Menopause (A)</p> Signup and view all the answers

What is the primary role of the female reproductive system?

<p>Produce gametes and support fetal development (C)</p> Signup and view all the answers

Which epithelium is found in the transformation zone of the female reproductive system?

<p>Squamocolumnar epithelium (A)</p> Signup and view all the answers

What hormone level is inhibited by contraceptive methods?

<p>Gonadotropin-releasing hormone (GnRH) (C)</p> Signup and view all the answers

What occurs during the menstrual cycle's follicular phase?

<p>Cyclical release of ova from the ovary (D)</p> Signup and view all the answers

What develops in the breast during puberty?

<p>Mammary duct system (C)</p> Signup and view all the answers

How long is the typical human gestation period?

<p>9 months (C)</p> Signup and view all the answers

What is the major factor influencing the proliferation of epithelial mucosa cells in the vagina?

<p>Presence of estrogen (A)</p> Signup and view all the answers

What happens to the corpus luteum if fertilization does not occur?

<p>It disintegrates and forms a scar called corpus albicans (A)</p> Signup and view all the answers

What event follows the LH surge in the menstrual cycle?

<p>Oocyte release from the dominant follicle (D)</p> Signup and view all the answers

What maintains the corpus luteum if fertilization occurs?

<p>Chorionic gonadotropin (D)</p> Signup and view all the answers

What defines primary infertility?

<p>Never having conceived before (D)</p> Signup and view all the answers

Which condition is the most common female factor leading to infertility?

<p>Ovulatory disorders (D)</p> Signup and view all the answers

What happens if fertilization does not occur?

<p>Progesterone and estradiol levels decline (B)</p> Signup and view all the answers

What is the probability of conceiving during timed intercourse?

<p>16% to 28% (D)</p> Signup and view all the answers

What is the function of progesterone after ovulation?

<p>Preparing the endometrium for implantation (C)</p> Signup and view all the answers

What happens to estradiol levels shortly before the LH surge?

<p>They reach a critical level to induce the surge (B)</p> Signup and view all the answers

Which type of infertility applies to those who have conceived in the past but are now facing difficulties?

<p>Secondary infertility (B)</p> Signup and view all the answers

What is the likely effect of a blocked fallopian tube on fertility?

<p>Prevention of oocyte transportation (A)</p> Signup and view all the answers

What is the primary function of the female reproductive system?

<p>To produce and regulate sex hormones (D)</p> Signup and view all the answers

Which hormone's release is primarily inhibited by contraception methods?

<p>Gonadotropin-releasing hormone (GnRH) (B)</p> Signup and view all the answers

During which phase of the menstrual cycle does ovulation typically occur?

<p>Ovulatory phase (D)</p> Signup and view all the answers

What initiates the LH surge during ovulation?

<p>Elevated GnRH pulse frequency (A)</p> Signup and view all the answers

What tissue type is most commonly sampled during Pap tests?

<p>Squamocolumnar epithelium (C)</p> Signup and view all the answers

What typically signals the end of a woman's reproductive years?

<p>Menopause (B)</p> Signup and view all the answers

Which phase of the menstrual cycle occurs after the Graafian follicle expels the ovum?

<p>Luteal phase (B)</p> Signup and view all the answers

During what phase do oocytes resume meiosis in preparation for fertilization?

<p>Metaphase II (D)</p> Signup and view all the answers

What structure develops after the ovum is expelled from the Graafian follicle?

<p>Corpus luteum (D)</p> Signup and view all the answers

What is the primary function of estrogen in the menstrual cycle?

<p>To initiate follicle recruitment (A)</p> Signup and view all the answers

What structure encloses the primary oocyte and participates in its development?

<p>Primordial follicle (D)</p> Signup and view all the answers

What is the role of the fimbria in the female reproductive system?

<p>Moving the oocyte into the fallopian tube (C)</p> Signup and view all the answers

What change occurs in the endometrial lining during the luteal phase?

<p>It thickens in preparation for potential implantation (C)</p> Signup and view all the answers

What happens to the endometrial lining if no fertilization occurs following ovulation?

<p>It is shed during menstrual bleeding (D)</p> Signup and view all the answers

How does pregnancy typically influence the female reproductive hormones?

<p>Maintains high levels of estrogen and progesterone (C)</p> Signup and view all the answers

What structure aids in capturing the expelled oocyte within the fallopian tubes?

<p>Fimbriae (B)</p> Signup and view all the answers

Which area of the uterus is referred to as the fundus?

<p>Superior aspect of the uterine corpus (D)</p> Signup and view all the answers

What happens to most primary oocytes during development?

<p>They perish before birth (C)</p> Signup and view all the answers

Which cells proliferate around the oocyte during follicle maturation?

<p>Granulosa cells (A)</p> Signup and view all the answers

What primarily regulates the thickening of the endometrial lining during the menstrual cycle?

<p>Estradiol (B)</p> Signup and view all the answers

What happens approximately 36 hours after the LH surge?

<p>The oocyte is released from the follicle (D)</p> Signup and view all the answers

What hormone is released by the corpus luteum after ovulation?

<p>Progesterone (C)</p> Signup and view all the answers

Which of the following defines primary infertility?

<p>Inability to conceive without any prior pregnancies (B)</p> Signup and view all the answers

What is the function of chorionic gonadotropin if fertilization occurs?

<p>Maintain the corpus luteum (C)</p> Signup and view all the answers

What is the probability of conceiving during timed intercourse according to studies?

<p>16% to 28% (C)</p> Signup and view all the answers

Which is the most common female factor leading to infertility?

<p>Ovulatory disorders (B)</p> Signup and view all the answers

What happens to progesterone and estradiol levels if fertilization does not occur?

<p>They decline (B)</p> Signup and view all the answers

What term describes the ability to conceive?

<p>Fecundability (B)</p> Signup and view all the answers

Which factor can contribute to both female and male infertility?

<p>Bacterial infections (B)</p> Signup and view all the answers

What effect does the corpus luteum have on the release of LH and FSH?

<p>Inhibits their release (A)</p> Signup and view all the answers

What occurs to primary oocytes at menarche?

<p>They remain in prophase I arrest. (A)</p> Signup and view all the answers

What does the corpus luteum primarily secrete?

<p>Progesterone and estradiol (A)</p> Signup and view all the answers

What happens to the dominant follicle during ovulation?

<p>It expels the ovum. (B)</p> Signup and view all the answers

Where does fertilization typically take place in the female reproductive system?

<p>Fallopian tube (C)</p> Signup and view all the answers

What is the role of fimbriae in the fallopian tubes?

<p>To capture and transport the ovum (B)</p> Signup and view all the answers

What marks the beginning of the follicular phase in the menstrual cycle?

<p>Onset of menses (C)</p> Signup and view all the answers

Which structure is primarily responsible for the secretion of hormones in the ovarian cycle?

<p>Corpus luteum (D)</p> Signup and view all the answers

What characterizes the luteal phase of the menstrual cycle?

<p>Declining levels of FSH and LH (B)</p> Signup and view all the answers

What happens to the endometrium if fertilization does not occur?

<p>It sheds during menstruation. (B)</p> Signup and view all the answers

Which hormone leads to the increase in GnRH pulse frequency during ovulation?

<p>Estradiol (B)</p> Signup and view all the answers

What initiates the cyclical expulsion of ova from the ovary during a woman's reproductive years?

<p>Luteinizing Hormone (LH) (B)</p> Signup and view all the answers

Which epithelium is primarily involved in the transformation zone of the cervix, commonly associated with cervical cancer?

<p>Squamocolumnar epithelium (D)</p> Signup and view all the answers

What is the primary role of progesterone in the menstrual cycle?

<p>Thickening the endometrial lining (C)</p> Signup and view all the answers

How does contraception effectively prevent ovulation?

<p>By suppressing Luteinizing Hormone (LH) (C)</p> Signup and view all the answers

What change occurs to the corpus luteum if fertilization does happen?

<p>It remains active and produces hormones (D)</p> Signup and view all the answers

What is the main function of the female reproductive system during the reproductive years?

<p>Facilitating menstruation and procreation (D)</p> Signup and view all the answers

What characterizes the period of menarche in a woman's life?

<p>Beginning of regular menstrual cycles (C)</p> Signup and view all the answers

What effect does the absence of estrogen have on the proliferation of epithelial cells in the vagina?

<p>Decreases cell growth (B)</p> Signup and view all the answers

What is gestation commonly referred to during the development of a fetus?

<p>Pregnancy (B)</p> Signup and view all the answers

What are the primary hormones involved throughout most of the reproductive cycle?

<p>Estrogen and progesterone (A)</p> Signup and view all the answers

What occurs approximately 36 hours after the surge in LH levels?

<p>The oocyte is released from the dominant follicle (D)</p> Signup and view all the answers

Which hormone is primarily responsible for maintaining the corpus luteum after fertilization occurs?

<p>Chorionic gonadotropin (D)</p> Signup and view all the answers

What is the primary effect of progesterone released by the corpus luteum?

<p>Inhibiting the release of FSH and LH (D)</p> Signup and view all the answers

What is defined as the inability to achieve pregnancy after one year of regular unprotected intercourse?

<p>Infertility (B)</p> Signup and view all the answers

Which female factor is most commonly associated with infertility?

<p>Endometriosis (D)</p> Signup and view all the answers

What role does fecundability play in conception?

<p>It indicates the ability to conceive naturally (C)</p> Signup and view all the answers

How is the probability of conceiving during timed intercourse generally quantified?

<p>16% to 28% (A)</p> Signup and view all the answers

What happens to LH and estradiol levels if fertilization does not occur?

<p>Both gradually decline (B)</p> Signup and view all the answers

Which of the following factors can contribute to infertility in both genders?

<p>Male factor disorders (A)</p> Signup and view all the answers

What occurs if the corpus luteum degenerates due to declining hormone levels?

<p>Menstruation begins (A)</p> Signup and view all the answers

What is the main role of the labia minora in the female reproductive system?

<p>To protect the urethra and the entrance to the reproductive tract (B)</p> Signup and view all the answers

Which of the following accurately describes the vagina in the female reproductive system?

<p>A muscular canal that connects the external genitals to the uterus (D)</p> Signup and view all the answers

Which external structure covers the pubic bone after puberty?

<p>Mons pubis (A)</p> Signup and view all the answers

What is a common misconception about the hymen?

<p>It is an indicator of a woman's virginity (B)</p> Signup and view all the answers

Which statement about the external female genitals is incorrect?

<p>The labia majora are smaller than the labia minora. (D)</p> Signup and view all the answers

What is the role of Lactobacillus in the vagina?

<p>It maintains an acidic pH to protect against pathogens. (D)</p> Signup and view all the answers

What is the primary function of the hymen in relation to the vaginal opening?

<p>It serves as a barrier that can be ruptured. (C)</p> Signup and view all the answers

Which statement accurately describes oogenesis?

<p>It involves the division of primary oocytes into secondary oocytes. (B)</p> Signup and view all the answers

What is the consequence of douching in regards to vaginal health?

<p>It may lead to an imbalance of healthy microorganisms. (D)</p> Signup and view all the answers

What happens to primary oocytes during a female's reproductive years?

<p>They remain dormant until ovulation occurs. (C)</p> Signup and view all the answers

What is the process through which ovarian follicles develop and eventually lead to ovulation?

<p>Folliculogenesis (B)</p> Signup and view all the answers

Which hormone primarily stimulates the growth of ovarian follicles?

<p>Follicle-Stimulating Hormone (FSH) (C)</p> Signup and view all the answers

During which phase of the ovarian cycle do the tertiary follicles begin to produce significant amounts of estrogen?

<p>Follicular phase (A)</p> Signup and view all the answers

What is the term for the death of ovarian follicles during their development?

<p>Atresia (B)</p> Signup and view all the answers

What triggers the LH surge that leads to ovulation of the dominant follicle?

<p>High levels of estrogen (D)</p> Signup and view all the answers

What layer of cells surrounds the primary oocyte in a primordial follicle?

<p>Granulosa cells (D)</p> Signup and view all the answers

What is the term for the process that transforms the collapsed follicle into the corpus luteum after ovulation?

<p>Luteinization (C)</p> Signup and view all the answers

What structure is formed when the corpus luteum stops producing progesterone and degrades?

<p>Corpus albicans (B)</p> Signup and view all the answers

Which hormone triggers the degradation of structural proteins in the ovarian wall during ovulation?

<p>Luteinizing hormone (LH) (C)</p> Signup and view all the answers

What anatomical part of the uterine tube is most commonly associated with fertilization?

<p>Ampulla (D)</p> Signup and view all the answers

What key role does progesterone play during the luteal phase of the ovarian cycle?

<p>Maintains pregnancy (B)</p> Signup and view all the answers

What layer of the uterine tubes is responsible for creating a current that helps move the oocyte toward the uterus?

<p>Inner mucosa (D)</p> Signup and view all the answers

Why might pelvic inflammatory disease (PID) lead to infertility?

<p>It causes scar tissue in the tubes (A)</p> Signup and view all the answers

What is the primary context in which the cilia in the uterine tubes operate?

<p>In response to estrogen levels (A)</p> Signup and view all the answers

What physiological change occurs due to high estrogen levels during the menstrual cycle?

<p>Increased uterine tube contractions (C)</p> Signup and view all the answers

Which structure forms after the collapse of the follicle post-ovulation?

<p>Corpus luteum (A)</p> Signup and view all the answers

What is the role of progesterone during the secretory phase of the menstrual cycle?

<p>To thicken the endometrial lining (D)</p> Signup and view all the answers

Which of the following best describes the impact of birth control pills?

<p>They provide a constant level of estrogen and progesterone (B)</p> Signup and view all the answers

If fertilization does not occur, what is the fate of the corpus luteum?

<p>It degrades into the corpus albicans (B)</p> Signup and view all the answers

What is the process of lactation primarily responsible for?

<p>Supplying milk to an infant (D)</p> Signup and view all the answers

What is the primary role of the broad ligament in the female reproductive system?

<p>It provides support for the uterus. (D)</p> Signup and view all the answers

Which layer of the uterus is primarily responsible for uterine contractions?

<p>Myometrium (D)</p> Signup and view all the answers

What triggers the shedding of the stratum functionalis during menstruation?

<p>Decline in progesterone levels (B)</p> Signup and view all the answers

During which phase does the endometrium rebuild after menstruation?

<p>Proliferative phase (D)</p> Signup and view all the answers

What is the role of the stratum functionalis in the menstrual cycle?

<p>It is shed during menstruation if implantation does not occur. (B)</p> Signup and view all the answers

What marks the beginning of the menses phase of the menstrual cycle?

<p>The first day of bleeding (D)</p> Signup and view all the answers

What hormone is primarily responsible for maintaining the thickened endometrium during the luteal phase?

<p>Progesterone (C)</p> Signup and view all the answers

When does the endometrial lining thicken in preparation for potential implantation?

<p>During the proliferative phase (A)</p> Signup and view all the answers

What occurs to the corpus luteum if fertilization does not take place?

<p>It degrades and ceases progesterone production (D)</p> Signup and view all the answers

What is the average length of a woman's menstrual cycle?

<p>28 days (B)</p> Signup and view all the answers

What is the primary function of the vulva in the female reproductive system?

<p>To serve as the external reproductive structures (A)</p> Signup and view all the answers

Which structure protects the urethra and the entrance to the female reproductive tract?

<p>Labia minora (B)</p> Signup and view all the answers

What role does the vagina serve in the female reproductive system?

<p>It serves as a muscular canal (B)</p> Signup and view all the answers

Which anatomical structure is formed from the same cells as the glans penis?

<p>Clitoris (D)</p> Signup and view all the answers

What is the significance of the hymen in the female reproductive system?

<p>It can partially cover the vaginal entrance (C)</p> Signup and view all the answers

What is the main function of the vaginal rugae?

<p>To allow for the expansion of the vagina during intercourse and childbirth (D)</p> Signup and view all the answers

What triggers the resumption of meiosis in a primary oocyte?

<p>The release of luteinizing hormone (B)</p> Signup and view all the answers

What is the process of oogenesis primarily responsible for?

<p>The formation of female gametes (C)</p> Signup and view all the answers

Which structure is responsible for secreting mucus to keep the vestibular area moist?

<p>Bartholin’s glands (A)</p> Signup and view all the answers

What happens to the majority of polar bodies produced during oogenesis?

<p>They disintegrate and do not survive (B)</p> Signup and view all the answers

What is the process called when ovarian follicles undergo death during development?

<p>Atresia (D)</p> Signup and view all the answers

Which hormone primarily stimulates the growth of ovarian follicles?

<p>Follicle-stimulating hormone (FSH) (B)</p> Signup and view all the answers

What marks the transition from primordial to primary follicles in the ovarian cycle?

<p>Granulosa cells become cuboidal and proliferate (A)</p> Signup and view all the answers

What is the name of the follicle that typically survives the reduction in FSH levels?

<p>Dominant follicle (B)</p> Signup and view all the answers

What triggers the secretion of large amounts of LH and FSH in the ovarian cycle?

<p>Surge in systemic estrogen concentrations (B)</p> Signup and view all the answers

Which phase follows the growth phase of tertiary follicles during the ovarian cycle?

<p>Ovulation phase (B)</p> Signup and view all the answers

What event marks the release of the oocyte during the ovarian cycle?

<p>Ovulation (D)</p> Signup and view all the answers

What hormone is primarily produced by the corpus luteum?

<p>Progesterone (B)</p> Signup and view all the answers

During which phase does progesterone exert negative feedback to suppress GnRH, LH, and FSH secretions?

<p>Luteal phase (D)</p> Signup and view all the answers

What structure forms from the collapsed follicle after the oocyte has been released?

<p>Corpus luteum (C)</p> Signup and view all the answers

Which section of the uterine tube is most commonly associated with fertilization?

<p>Ampulla (D)</p> Signup and view all the answers

How does the oocyte move towards the uterus after being released from the ovary?

<p>Contractions of smooth muscle and ciliary action (A)</p> Signup and view all the answers

What happens to the corpus luteum if fertilization does not occur?

<p>It degenerates into the corpus albicans (D)</p> Signup and view all the answers

What is the primary role of the fimbriae at the end of the uterine tubes?

<p>To capture and guide the oocyte into the tube (A)</p> Signup and view all the answers

What occurs when high estrogen levels increase the uterine tube contractions?

<p>They facilitate pick-up and transfer of the ovulated oocyte. (C)</p> Signup and view all the answers

What marks the beginning of the secretory phase in the menstrual cycle?

<p>Luteinization of granulosa cells. (A)</p> Signup and view all the answers

What happens to the endometrial lining if no pregnancy occurs after ovulation?

<p>It undergoes necrosis and is shed as menses. (C)</p> Signup and view all the answers

What is the primary action of birth control pills in regulating the menstrual cycle?

<p>They provide a constant level of estrogen and progesterone. (A)</p> Signup and view all the answers

Which phase follows the proliferative phase in a typical menstrual cycle?

<p>Secretory phase. (A)</p> Signup and view all the answers

What is the role of myoepithelial cells in the lactation process?

<p>They contract to push milk into the lactiferous ducts. (A)</p> Signup and view all the answers

What is the function of the broad ligament in the female reproductive system?

<p>It serves as a primary support for the uterus. (B)</p> Signup and view all the answers

Which layer of the uterus is primarily responsible for contractions during labor?

<p>Myometrium (C)</p> Signup and view all the answers

During which phase of the menstrual cycle does the stratum functionalis shed?

<p>Menses phase (A)</p> Signup and view all the answers

What happens to the stratum functionalis layer if fertilization does not occur?

<p>It sheds during menstruation. (D)</p> Signup and view all the answers

What hormonal changes characterize the transition from the follicular phase to the luteal phase of the menstrual cycle?

<p>Increase in progesterone and decrease in estrogen. (C)</p> Signup and view all the answers

What role do spiral arteries play during the luteal phase of the menstrual cycle?

<p>They supply the stratum functionalis with oxygenated blood. (D)</p> Signup and view all the answers

What is the first occurrence of menstruation after puberty called?

<p>Menarche (D)</p> Signup and view all the answers

What triggers the increase in estrogen levels during the proliferative phase?

<p>Production from granulosa and theca cells (B)</p> Signup and view all the answers

Which layer of the endometrium is shed during menstruation?

<p>Stratum functionalism (A)</p> Signup and view all the answers

What happens to the endometrial tissue if there is no implantation?

<p>It degenerates and is shed. (D)</p> Signup and view all the answers

What is the primary function of the ovaries in the female reproductive system?

<p>Production of oocytes and reproductive hormones (C)</p> Signup and view all the answers

Which structure serves as the protective entrance to the female reproductive tract?

<p>Labia minora (C)</p> Signup and view all the answers

What distinguishes the male and female reproductive systems in terms of location?

<p>Female reproductive system is located primarily inside the pelvic cavity (C)</p> Signup and view all the answers

What is the function of the hymen in the female reproductive system?

<p>To partially cover the entrance to the vagina (C)</p> Signup and view all the answers

Which part of the vagina is located closest to the uterus?

<p>Fornix (A)</p> Signup and view all the answers

What is the term for the death of ovarian follicles during folliculogenesis?

<p>Atresia (C)</p> Signup and view all the answers

Which hormone primarily stimulates the growth of follicles in the ovarian cycle?

<p>FSH (C)</p> Signup and view all the answers

During which stage of folliculogenesis does the oocyte secrete the zona pellucida?

<p>Secondary follicle (C)</p> Signup and view all the answers

What initiates the positive feedback loop that leads to ovulation?

<p>High concentrations of estrogen (C)</p> Signup and view all the answers

What role do theca cells play in the function of ovarian follicles?

<p>Produce estrogens (D)</p> Signup and view all the answers

What is the primary function of the Lactobacillus bacteria in the vagina?

<p>To maintain an acidic pH (A)</p> Signup and view all the answers

How many follicles typically survive to become the dominant follicle in the ovarian cycle?

<p>Only 1 (A)</p> Signup and view all the answers

Which layer of the ovary is primarily responsible for the development of oocytes?

<p>Ovarian stroma (D)</p> Signup and view all the answers

What event marks the transition from a primary oocyte to a secondary oocyte?

<p>Completion of meiosis I (C)</p> Signup and view all the answers

What is the effect of douching on the vaginal ecosystem?

<p>It disrupts the balance of microorganisms (C)</p> Signup and view all the answers

How many primary oocytes are typically present in the ovaries at puberty?

<p>About 400,000 (B)</p> Signup and view all the answers

What is the process called when the corpus luteum stops secreting progesterone and transforms into a nonfunctional structure?

<p>Corpus albicans (B)</p> Signup and view all the answers

What role does progesterone play in the menstrual cycle?

<p>Triggers negative feedback on GnRH, LH, and FSH (D)</p> Signup and view all the answers

Which section of the uterine tube is most commonly the site of fertilization?

<p>Ampulla (D)</p> Signup and view all the answers

What happens to the oocyte if fertilization does not occur?

<p>It degrades either in the uterine tube or uterus (A)</p> Signup and view all the answers

What physical feature of the ovary aids in the release of the oocyte during ovulation?

<p>Pressure from the antrum (A)</p> Signup and view all the answers

Which part of the uterus is located superior to the opening of the uterine tubes?

<p>Fundus (D)</p> Signup and view all the answers

What initiates the contractions of smooth muscle in the uterine tubes to aid oocyte movement?

<p>High estrogen concentrations (D)</p> Signup and view all the answers

What structural change occurs to the follicle after the oocyte is ovulated?

<p>It transforms into the corpus luteum (C)</p> Signup and view all the answers

What leads to the stimulation of the LH surge that triggers ovulation?

<p>Elevated estrogen production from the dominant follicle (C)</p> Signup and view all the answers

What is the function of the corpus luteum after ovulation?

<p>To produce progesterone (C)</p> Signup and view all the answers

What occurs if fertilization does not happen within 10 to 12 days after ovulation?

<p>The corpus luteum degrades into the corpus albicans (C)</p> Signup and view all the answers

What role do myoepithelial cells play in lactation?

<p>They contract to push milk to the lactiferous sinus (B)</p> Signup and view all the answers

How do hormonal birth control pills prevent ovulation?

<p>By providing constant levels of estrogen and progesterone (A)</p> Signup and view all the answers

What occurs in the uterine glands during the secretory phase of the menstrual cycle?

<p>They secrete a fluid rich in glycogen (A)</p> Signup and view all the answers

What is the primary function of the broad ligament in the female reproductive system?

<p>Support the uterus by connecting it to the pelvic wall (C)</p> Signup and view all the answers

Which layer of the uterus sheds during menstruation?

<p>Stratum functionalis (D)</p> Signup and view all the answers

During which phase of the menstrual cycle does the endometrial lining begin to thicken again after menstruation?

<p>Proliferative phase (B)</p> Signup and view all the answers

What triggers the shedding of the stratum functionalis during menstruation?

<p>Decline in progesterone levels (A)</p> Signup and view all the answers

How long does the menses phase typically last?

<p>2 to 7 days (D)</p> Signup and view all the answers

What is the role of the stratum functionalis in the menstrual cycle?

<p>It acts as the site for implantation of a fertilized egg (C)</p> Signup and view all the answers

What happens to the corpus luteum if fertilization does not occur?

<p>It degrades and progesterone production ceases (C)</p> Signup and view all the answers

What is primarily responsible for maintaining the thickened endometrial lining during the luteal phase?

<p>Progesterone (B)</p> Signup and view all the answers

Which structure connects the cervix to the pelvic wall to provide stability to the uterus?

<p>Uterosacral ligament (B)</p> Signup and view all the answers

What is the first menstruation known as?

<p>Menarche (B)</p> Signup and view all the answers

Flashcards

Female Reproductive System

The system of internal and external organs in a female responsible for menstruation, procreation, producing eggs, regulating hormones, and developing a fetus.

Reproductive Years

The period of a woman's life between menarche (first period) and menopause (12 consecutive months without a period).

Menstruation

The cyclical release of an egg from the ovary.

Ovulation

The release of the egg (ovum) from the ovary during the menstrual cycle.

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Fertilization

The joining of a sperm and egg, resulting in pregnancy.

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Pregnancy

The process of a fertilized egg developing into a fetus.

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Gestation

The period of time from conception to birth; also known as pregnancy.

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Contraception

Methods to prevent pregnancy.

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Estrogen

A hormone that influences the reproductive cycle and other bodily functions, particularly bone growth.

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Transformation zone

Area between ecto and endocervix; a site where pap tests are performed & is where cervical cancer arises.

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LH Surge

A sudden increase in luteinizing hormone (LH) concentration, triggered by high estradiol levels, leading to ovulation.

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Ovulation Timing

Release of the oocyte from the follicle, usually around 36 hours after the LH surge.

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Corpus Luteum Role

Produces progesterone to maintain the uterine lining if fertilization occurs; inhibits LH and FSH if no fertilization.

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No Fertilization Result

Corpus luteum degenerates, progesterone and estradiol fall, causing menstruation.

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Fertilization Outcome

Oocyte implants, releasing chorionic gonadotropin (hCG), maintaining corpus luteum.

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Fecundability

The ability to conceive, often expressed as a percentage.

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Infertility Definition

Inability to conceive after one year of regular, unprotected intercourse.

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Primary Infertility

Infertility in individuals who have never conceived.

Signup and view all the flashcards

Secondary Infertility

Infertility in those who have conceived previously but are now experiencing infertility.

Signup and view all the flashcards

Common Female Infertility Causes

Ovulatory disorders, endometriosis, pelvic adhesions, tubal blockage, uterine/tubal abnormalities, and hyperprolactinemia.

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Ovulatory Disorders

Problems with the ovulation process.

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Estrogen positive feedback

Estrogen (estradiol) stimulates the hypothalamus to increase GnRH pulse frequency, leading to a LH surge and ovulation.

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Oogonia

Germ cells in the female that divide rapidly in utero to form primary oocytes.

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Primary Oocytes

The primary cells formed from oogonia that are arrested in Prophase I until puberty.

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Primordial follicle

A structure surrounding the oocyte, composed of granulosa and theca cells, and a defining feature of the early stage in follicle maturation

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Menarche

A woman's first menstrual cycle, marking the onset of puberty in females and the resumption of meiosis.

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Ovum

The mature female gamete, formed after the expelling of the second polar body, ready for fertilization

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Vulva

The external female genitalia, including the labia majora, labia minora, clitoris, and vaginal orifice.

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Labia Majora

Outer folds of tissue that enclose and protect the other external genitalia.

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Vagina

A fibromuscular canal extending from the vulva to the cervix.

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Uterus

The organ where a fertilized egg implants and develops during pregnancy. It has a body (corpus) and a cervix.

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Cervix

The lower part of the uterus that connects it to the vagina.

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Fallopian Tubes

Tubes connecting the ovaries to the uterus; they facilitate the passage of the ovum during fertilization.

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Ovaries

Female gonads that produce eggs (ova) and sex hormones, such as estrogen and progesterone.

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Follicular Phase

The first part of the menstrual cycle, marked by follicle development and increasing estrogen.

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Luteal Phase

The second part of the menstrual cycle, marked by corpus luteum development.

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Ovulation

The release of a mature ovum from the ovary.

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.gov websites

Official websites of the U.S. Federal government

Signup and view all the flashcards

Female Reproductive System

System of internal and external organs for menstruation, procreation, egg production, hormone regulation, and fetal development.

Signup and view all the flashcards

Reproductive Years

Period between first period (menarche) and no periods for 12 consecutive months (menopause).

Signup and view all the flashcards

Menstrual Cycle

Cyclic release of an egg (ovum) from the ovary.

Signup and view all the flashcards

Ovulation

Release of a mature egg from the ovary.

Signup and view all the flashcards

Fertilization/Conception

Union of sperm and egg.

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Gestation

Period of pregnancy, typically 9 months.

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Contraception

Methods to prevent pregnancy.

Signup and view all the flashcards

Estrogen

Hormone affecting reproductive cycle and bone growth.

Signup and view all the flashcards

Transformation Zone

Area between cervix's inner and outer linings.

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Pap Tests

Screening test for cervical cancer.

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Estrogen Positive Feedback

Estrogen stimulates the hypothalamus to increase GnRH pulses, triggering an LH surge and ovulation.

Signup and view all the flashcards

Oogonia

Germ cells in a female that rapidly divide in the womb, forming millions of primary oocytes.

Signup and view all the flashcards

Primary Oocytes

Immature egg cells; arrested in prophase I until puberty.

Signup and view all the flashcards

Primordial Follicle

Surrounds a primary oocyte, made up of granulosa and theca cells.

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Menarche

First menstrual cycle, marking the onset of a female's reproductive years.

Signup and view all the flashcards

Ovum

Mature female gamete, ready for fertilization after expelling the second polar body.

Signup and view all the flashcards

Vulva

External female genitalia, including labia, clitoris, and vaginal opening.

Signup and view all the flashcards

Vagina

Fibromuscular canal connecting the vulva to the cervix.

Signup and view all the flashcards

Uterus

Organ where a fertilized egg implants and develops into a fetus, consisting of the corpus and cervix.

Signup and view all the flashcards

Cervix

Lower part of the uterus that connects it to the vagina; a canal between uterus and vagina.

Signup and view all the flashcards

Fallopian Tubes

Tubes connecting ovaries to the uterus, guiding oocyte to the uterus for potential fertilization.

Signup and view all the flashcards

Ovaries

Female gonads; produce eggs and sex hormones.

Signup and view all the flashcards

Follicular Phase

First part of the menstrual cycle; marked by follicle development.

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Luteal Phase

Second part of menstrual cycle; marked by Corpus Luteum development.

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LH Surge Trigger

High estradiol levels cause a sudden increase in luteinizing hormone (LH).

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Ovulation Timing

Oocyte release from follicle roughly 36 hours after LH surge.

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Corpus Luteum Function

Produces progesterone to support uterine lining after ovulation.

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No Fertilization Outcome

Corpus luteum degenerates, progesterone drops, and menstruation follows.

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Fertilization Outcome

Implanted oocyte releases hCG, maintaining corpus luteum and progesterone.

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Fecundability Definition

Probability of conceiving, often expressed as a percentage.

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Infertility Definition

Inability to conceive after one year of unprotected intercourse.

Signup and view all the flashcards

Primary Infertility

Infertility when pregnancy has never occurred.

Signup and view all the flashcards

Secondary Infertility

Infertility after a previous pregnancy.

Signup and view all the flashcards

Common Female Infertility Causes

Ovulatory disorders, endometriosis, tubal blockage, uterine abnormalities, and hyperprolactinemia.

Signup and view all the flashcards

LH Surge

A sudden increase in luteinizing hormone (LH) concentration, triggered by high estradiol levels, leading to ovulation.

Signup and view all the flashcards

Ovulation Timing

Release of the oocyte from the follicle, typically around 36 hours after the LH surge.

Signup and view all the flashcards

Corpus Luteum Role

Produces progesterone to maintain the uterine lining if fertilization occurs; inhibits LH and FSH release if no fertilization occurs.

Signup and view all the flashcards

No Fertilization Result

Corpus luteum degenerates, progesterone and estradiol levels fall, causing menstruation.

Signup and view all the flashcards

Fertilization Outcome

Oocyte implants, releasing chorionic gonadotropin (hCG), maintaining the corpus luteum and progesterone level.

Signup and view all the flashcards

Fecundability

The ability to conceive, often expressed as a percentage.

Signup and view all the flashcards

Infertility Definition

Inability to conceive after one year of regular, unprotected sexual intercourse.

Signup and view all the flashcards

Primary Infertility

Infertility in individuals who have never conceived.

Signup and view all the flashcards

Secondary Infertility

Infertility in those who have conceived previously but are now experiencing infertility.

Signup and view all the flashcards

Common Female Infertility Causes

Ovulatory disorders, endometriosis, pelvic adhesions, tubal blockage, uterine/tubal abnormalities, and hyperprolactinemia.

Signup and view all the flashcards

Estrogen Positive Feedback

Estrogen stimulates the hypothalamus to increase GnRH pulse frequency, which triggers a LH surge and ovulation.

Signup and view all the flashcards

Oogonia

Germ cells in females that rapidly divide in utero to form primary oocytes.

Signup and view all the flashcards

Primary Oocytes

Immature egg cells arrested in Prophase I until puberty.

Signup and view all the flashcards

Primordial Follicle

Structure surrounding a primary oocyte, containing granulosa and theca cells; an early follicle stage.

Signup and view all the flashcards

Menarche

A woman's first menstrual cycle, marking the onset of a female's reproductive years and resuming meiosis.

Signup and view all the flashcards

Ovum

Mature female gamete, ready for fertilization, after expelling the second polar body.

Signup and view all the flashcards

Vulva

External female genitalia, including the labia, clitoris, and vaginal opening.

Signup and view all the flashcards

Vagina

Fibromuscular canal connecting the vulva to the cervix.

Signup and view all the flashcards

Uterus

Organ where a fertilized egg implants and develops, consisting of corpus and cervix.

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Cervix

Lower part of the uterus that connects to the vagina; a canal between the uterus and vagina.

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Fallopian Tubes

Tubes connecting ovaries to the uterus, guiding the oocyte to the uterus for potential fertilization.

Signup and view all the flashcards

Ovaries

Female gonads; produce eggs and sex hormones.

Signup and view all the flashcards

Follicular Phase

First part of the menstrual cycle; marked by follicle development.

Signup and view all the flashcards

Luteal Phase

Second part of the menstrual cycle; marked by corpus luteum development.

Signup and view all the flashcards

LH Surge Trigger

High estradiol levels cause a sudden increase in luteinizing hormone (LH).

Signup and view all the flashcards

Ovulation Timing

Oocyte release from follicle roughly 36 hours after LH surge.

Signup and view all the flashcards

Corpus Luteum Function

Produces progesterone to support uterine lining after ovulation.

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No Fertilization Outcome

Corpus luteum degenerates, progesterone drops, and menstruation follows.

Signup and view all the flashcards

.gov websites

Official websites of the U.S. Federal government.

Signup and view all the flashcards

Female Reproductive System

System of internal and external organs for menstruation, procreation, egg production, hormone regulation, and fetal development.

Signup and view all the flashcards

Reproductive Years

Period between first period (menarche) and no periods for 12 consecutive months (menopause).

Signup and view all the flashcards

Menstrual Cycle

Cyclic release of an egg (ovum) from the ovary.

Signup and view all the flashcards

Ovulation

Release of a mature egg from the ovary.

Signup and view all the flashcards

Fertilization/Conception

Union of sperm and egg.

Signup and view all the flashcards

Gestation

Period of pregnancy, typically 9 months.

Signup and view all the flashcards

Contraception

Methods to prevent pregnancy.

Signup and view all the flashcards

Estrogen

Hormone affecting reproductive cycle and bone growth.

Signup and view all the flashcards

Transformation Zone

Area between cervix's inner and outer linings.

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Pap Tests

Screening test for cervical cancer.

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Estrogen Positive Feedback

Estrogen stimulates the hypothalamus to increase GnRH pulses, triggering an LH surge and ovulation.

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Oogonia

Germ cells in a female that rapidly divide in the womb, forming millions of primary oocytes.

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Primary Oocytes

Immature egg cells; arrested in prophase I until puberty.

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Primordial Follicle

Surrounds a primary oocyte, made up of granulosa and theca cells.

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Menarche

First menstrual cycle, marking the onset of a female's reproductive years.

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Ovum

Mature female gamete, ready for fertilization after expelling the second polar body.

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Vulva

External female genitalia, including labia, clitoris, and vaginal opening.

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Vagina

Fibromuscular canal connecting the vulva to the cervix.

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Uterus

Organ where a fertilized egg implants and develops into a fetus, consisting of the corpus and cervix.

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Cervix

Lower part of the uterus that connects it to the vagina.

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Fallopian Tubes

Tubes connecting ovaries to the uterus, guiding oocyte to the uterus for potential fertilization.

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Ovaries

Female gonads; produce eggs and sex hormones.

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Follicular Phase

First part of the menstrual cycle; marked by follicle development.

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Luteal Phase

Second part of menstrual cycle; marked by Corpus Luteum development.

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LH Surge Trigger

High estradiol levels cause a sudden increase in luteinizing hormone (LH).

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Ovulation Timing

Oocyte release from follicle roughly 36 hours after LH surge.

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Corpus Luteum Function

Produces progesterone to support uterine lining after ovulation.

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No Fertilization Outcome

Corpus luteum degenerates, progesterone drops, and menstruation follows.

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Fertilization Outcome

Implanted oocyte releases hCG, maintaining corpus luteum and progesterone.

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Fecundability Definition

Probability of conceiving, often expressed as a percentage.

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.gov websites

Websites of the U.S. Federal government, often ending in ".gov" or ".mil"

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Female Reproductive System

Internal and external organs in females for menstruation, procreation, egg production, hormone regulation, and fetal development.

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Reproductive Years

Period between menarche (first period) and menopause (12 consecutive months without a period).

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Menstrual Cycle

Cyclic release of an egg from the ovary.

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Ovulation

The release of a mature egg from the ovary.

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Fertilization

Union of a sperm and egg.

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Gestation

Pregnancy; period from conception to birth, typically 9 months.

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Contraception

Methods to prevent pregnancy.

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Estrogen

Hormone influencing reproductive cycle and bone growth.

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Transformation Zone

Area between the ectocervix and endocervix, common site for pap tests and cervical cancer.

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Pap Tests

Screening test for cervical cancer.

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LH Surge

Sudden increase in luteinizing hormone, triggering ovulation.

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Ovulation Timing

Oocyte release from follicle approximately 36 hours after luteinizing hormone surge.

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Corpus Luteum Role

Produces progesterone to maintain uterine lining if fertilization occurs; Inhibits LH and FSH if no fertilization occurs.

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No Fertilization Result

Corpus luteum degenerates, progesterone levels fall, leading to menstruation.

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Infertility Definition

Inability to conceive after one year of regular, unprotected intercourse.

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Estrogen positive feedback

Estrogen (estradiol) stimulates the hypothalamus, increasing GnRH pulse frequency, leading to a LH surge and ovulation.

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Oogonia

Germ cells in females that divide rapidly in utero, forming millions of primary oocytes.

Signup and view all the flashcards

Primary Oocytes

Immature egg cells arrested in prophase I until puberty.

Signup and view all the flashcards

Primordial follicle

Structure surrounding a primary oocyte, containing granulosa and theca cells; an early follicle stage.

Signup and view all the flashcards

Menarche

A woman's first menstrual cycle, marking the onset of a female's reproductive years and resuming meiosis.

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Ovum

Mature female gamete, ready for fertilization, after expelling the second polar body.

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Vulva

External female genitalia, including the labia, clitoris, and vaginal opening.

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Vagina

Fibromuscular canal connecting the vulva to the cervix.

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Uterus

Organ where a fertilized egg implants and develops, consisting of corpus and cervix.

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Cervix

Lower part of the uterus that connects to the vagina; a canal between the uterus and vagina.

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Fallopian Tubes

Tubes connecting ovaries to the uterus, guiding the oocyte to the uterus for potential fertilization.

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Ovaries

Female gonads; produce eggs and sex hormones.

Signup and view all the flashcards

Follicular Phase

First part of the menstrual cycle; marked by follicle development.

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Luteal Phase

Second part of the menstrual cycle; marked by corpus luteum development.

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LH Surge Trigger

High estradiol levels cause a sudden increase in luteinizing hormone (LH).

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Ovulation Timing

Oocyte release from follicle roughly 36 hours after LH surge.

Signup and view all the flashcards

Corpus Luteum Function

Produces progesterone to support uterine lining after ovulation.

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No Fertilization Outcome

Corpus luteum degenerates, progesterone drops, and menstruation follows.

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Fertilization Outcome

Implanted oocyte releases hCG, maintaining the corpus luteum and progesterone level.

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LH Surge

A sudden increase in luteinizing hormone (LH), triggered by high estradiol levels, leading to ovulation.

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Ovulation Timing

The oocyte's release from the follicle, typically ~36 hours after the LH surge.

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Corpus Luteum Role

Produces progesterone to maintain the uterine lining after ovulation; inhibits LH and FSH if no fertilization occurs.

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No Fertilization Result

Corpus luteum degenerates, progesterone & estradiol levels fall, causing menstruation.

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Fertilization Outcome

Oocyte implants, releasing chorionic gonadotropin (hCG), maintaining corpus luteum and progesterone levels.

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Fecundability

The ability to conceive, often expressed as a percentage.

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Infertility Definition

Inability to conceive after one year of regular, unprotected intercourse.

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Primary Infertility

Infertility in individuals who have never conceived.

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Secondary Infertility

Infertility in those who have conceived previously but are now experiencing infertility.

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Common Female Infertility Causes

Ovulatory disorders, endometriosis, pelvic adhesions, tubal blockage, uterine/tubal abnormalities, and hyperprolactinemia.

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.gov websites

Official websites of the U.S. Federal government.

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Female Reproductive System

Internal and external organs facilitating menstruation and reproduction.

Signup and view all the flashcards

Reproductive Years

Period between a woman's first period and the end of periods.

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Menstrual Cycle

Cyclic release of an egg from the ovary.

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Ovulation

Release of a mature egg from the ovary.

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Fertilization/Conception

Union of sperm and egg.

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Gestation

Period of pregnancy.

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Contraception

Methods to prevent pregnancy.

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Estrogen

Hormone affecting reproductive cycle and bone health.

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Transformation Zone

Area between the inner and outer linings of the cervix.

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Pap Tests

Screening test for cervical cancer.

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Estrogen Positive Feedback

Estrogen stimulates the pituitary to release more hormones, leading to ovulation.

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Oogonia

Germ cells dividing in the womb to form primary oocytes.

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Primary Oocytes

Immature egg cells arrested until puberty.

Signup and view all the flashcards

Primordial Follicle

Structure surrounding a primary oocyte.

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Menarche

A woman's first menstrual period.

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Ovum

Mature egg cell; ready for fertilization.

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Vulva

External female genitalia.

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Vagina

Canal from vulva to cervix.

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Uterus

Organ where a fertilized egg implants.

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Cervix

Lower part of the uterus connecting to the vagina.

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Fallopian Tubes

Tubes connecting ovaries to the uterus.

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Ovaries

Female gonads producing eggs and hormones.

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Follicular Phase

Part of the menstrual cycle focused on follicle development.

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Luteal Phase

Part of the menstrual cycle focused on the corpus luteum.

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LH Surge Trigger

High estradiol levels cause a sudden increase in luteinizing hormone (LH).

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Ovulation Timing

Release of the oocyte from the follicle, approximately 36 hours after the LH surge.

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Corpus Luteum Function

Produces progesterone to maintain the uterine lining after ovulation, inhibiting LH and FSH if no fertilization occurs.

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No Fertilization Result

The corpus luteum degenerates, leading to a drop in progesterone and estradiol levels, triggering menstruation.

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Fertilization Outcome

The fertilized oocyte implants, releases chorionic gonadotropin (hCG), maintaining the corpus luteum and progesterone levels.

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Fecundability

The ability to conceive, often expressed as a percentage.

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Infertility Definition

Inability to conceive after one year of regular, unprotected sexual intercourse.

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Primary Infertility

Infertility in individuals who have never conceived.

Signup and view all the flashcards

Secondary Infertility

Infertility in individuals who have conceived previously but are now experiencing infertility.

Signup and view all the flashcards

Common Female Infertility Causes

Ovulatory disorders, endometriosis, pelvic adhesions, tubal blockage, uterine/tubal abnormalities, and hyperprolactinemia.

Signup and view all the flashcards

Estrogen Positive Feedback

Estrogen stimulates the hypothalamus to increase GnRH pulse frequency, leading to an LH surge and ovulation.

Signup and view all the flashcards

Oogonia

Germ cells in females that rapidly divide in the womb to form primary oocytes.

Signup and view all the flashcards

Primary Oocytes

Immature eggs arrested in Prophase I until puberty.

Signup and view all the flashcards

Primordial Follicle

Structure surrounding a primary oocyte, containing granulosa and theca cells; an early follicle stage.

Signup and view all the flashcards

Menarche

A woman's first menstrual cycle.

Signup and view all the flashcards

Ovum

Mature female gamete, ready for fertilization, after expelling the second polar body.

Signup and view all the flashcards

Vulva

External female genitalia, including the labia, clitoris, and vaginal opening.

Signup and view all the flashcards

Vagina

Fibromuscular canal connecting the vulva to the cervix.

Signup and view all the flashcards

Uterus

Organ where a fertilized egg implants and develops, consisting of corpus and cervix.

Signup and view all the flashcards

Cervix

Lower part of the uterus that connects to the vagina.

Signup and view all the flashcards

Fallopian Tubes

Tubes connecting ovaries to the uterus, guiding the oocyte to the uterus for potential fertilization.

Signup and view all the flashcards

Ovaries

Female gonads; produce eggs (ova) and sex hormones.

Signup and view all the flashcards

Follicular Phase

First part of the menstrual cycle; marked by follicle development.

Signup and view all the flashcards

Luteal Phase

Second part of the menstrual cycle; marked by corpus luteum development.

Signup and view all the flashcards

LH Surge

A sudden increase in luteinizing hormone (LH) concentration, triggered by high estradiol levels, leading to ovulation.

Signup and view all the flashcards

Ovulation Timing

Oocyte release from the follicle roughly 36 hours after LH surge.

Signup and view all the flashcards

Corpus Luteum Role

Produces progesterone to support uterine lining after ovulation.

Signup and view all the flashcards

No Fertilization Outcome

Corpus luteum degenerates, progesterone drops, and menstruation follows.

Signup and view all the flashcards

Fertilization Outcome

Implanted oocyte releases chorionic gonadotropin (hCG), maintaining the corpus luteum and progesterone level.

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Fecundability

Probability of conceiving, often expressed as a percentage.

Signup and view all the flashcards

Infertility Definition

Inability to conceive after one year of unprotected intercourse.

Signup and view all the flashcards

LH Surge Trigger

High estradiol levels cause a sudden increase in luteinizing hormone (LH).

Signup and view all the flashcards

Ovulation Timing

Oocyte release from follicle roughly 36 hours after LH surge.

Signup and view all the flashcards

Corpus Luteum Function

Produces progesterone to support uterine lining after ovulation.

Signup and view all the flashcards

No Fertilization Outcome

Corpus luteum degenerates, progesterone drops, and menstruation follows.

Signup and view all the flashcards

Fertilization Outcome

Oocyte implants, releasing chorionic gonadotropin (hCG), maintaining the corpus luteum and progesterone level.

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Fecundability

The ability to conceive, often expressed as a percentage.

Signup and view all the flashcards

Infertility Definition

Inability to conceive after one year of regular, unprotected sexual intercourse.

Signup and view all the flashcards

Primary Infertility

Infertility in individuals who have never conceived.

Signup and view all the flashcards

Secondary Infertility

Infertility in those who have conceived previously but are now experiencing infertility.

Signup and view all the flashcards

Common Female Infertility Causes

Ovulatory disorders, endometriosis, pelvic adhesions, tubal blockage, uterine/tubal abnormalities, and hyperprolactinemia.

Signup and view all the flashcards

Estrogen Positive Feedback

Estrogen stimulates the hypothalamus to increase GnRH pulse frequency, causing a LH surge and ovulation.

Signup and view all the flashcards

Oogonia

Female germ cells that rapidly divide in the womb to form primary oocytes.

Signup and view all the flashcards

Primary Oocytes

Immature egg cells arrested in prophase I until puberty.

Signup and view all the flashcards

Primordial Follicle

A structure surrounding a primary oocyte, composed of granulosa and theca cells.

Signup and view all the flashcards

Menarche

First menstrual cycle, signaling the resumption of meiosis in females.

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Ovum

Mature female gamete, ready for fertilization after expelling the second polar body.

Signup and view all the flashcards

Vulva

External female genitalia.

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Vagina

Fibromuscular canal connecting the vulva to the cervix.

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Uterus

Organ where a fertilized egg implants and develops; has corpus and cervix.

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Cervix

Lower part of the uterus connecting it to the vagina, acting as a canal.

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Fallopian Tubes

Tubes connecting ovaries to the uterus, guiding oocytes.

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Ovaries

Female gonads that release eggs (ova) and produce hormones like estrogen and progesterone.

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Follicular Phase

First part of menstrual cycle, marked by follicle development.

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Luteal Phase

Second phase in menstrual cycle, marked by corpus luteum development.

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LH Surge Trigger

High estradiol levels initiate a sudden increase in luteinizing hormone (LH).

Signup and view all the flashcards

Ovulation Timing

Oocyte release from follicle around 36 hours after LH surge.

Signup and view all the flashcards

Corpus Luteum Function

Produces progesterone to support the uterine lining.

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No Fertilization Outcome

Corpus luteum degenerates, progesterone declines, leading to menstruation.

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Fertilization Outcome

Successful fertilization leads to implantation, hCG release, and corpus luteum maintenance.

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.gov websites

Official websites of the U.S. Federal government.

Signup and view all the flashcards

Female Reproductive System

System of internal and external organs for menstruation, procreation, releasing eggs, regulating hormones & fetal development.

Signup and view all the flashcards

Reproductive Years

Period between first period (menarche) and no periods for 12 months (menopause).

Signup and view all the flashcards

Menstrual Cycle

Cyclic release of an egg (ovum) from the ovary.

Signup and view all the flashcards

Ovulation

Release of a mature egg from the ovary.

Signup and view all the flashcards

Fertilization/Conception

Union of sperm and egg.

Signup and view all the flashcards

Gestation

Period of pregnancy, typically 9 months.

Signup and view all the flashcards

Contraception

Methods to prevent pregnancy.

Signup and view all the flashcards

Estrogen

Hormone affecting reproductive cycle and bone growth.

Signup and view all the flashcards

Transformation Zone

Area between cervix's inner and outer linings; common site for cervical cancer.

Signup and view all the flashcards

Pap Tests

Screening test for cervical cancer.

Signup and view all the flashcards

Estrogen Positive Feedback

Estrogen stimulates the hypothalamus to increase GnRH pulses, triggering an LH surge and ovulation.

Signup and view all the flashcards

Oogonia

Germ cells in females that rapidly divide in the womb to form primary oocytes.

Signup and view all the flashcards

Primary Oocytes

Immature egg cells arrested in Prophase I until puberty.

Signup and view all the flashcards

Primordial Follicle

Structure surrounding a primary oocyte, containing granulosa and theca cells. An early stage of follicle.

Signup and view all the flashcards

Menarche

First menstrual cycle, marking the onset of a female's reproductive years and restarting meiosis.

Signup and view all the flashcards

Ovum

Mature female gamete, ready for fertilization, after expelling the second polar body.

Signup and view all the flashcards

Vulva

External female genitalia, including the labia, clitoris, and vaginal opening.

Signup and view all the flashcards

Vagina

Fibromuscular canal connecting the vulva to the cervix.

Signup and view all the flashcards

Uterus

Organ where a fertilized egg implants and develops, consisting of corpus and cervix.

Signup and view all the flashcards

Cervix

Lower part of the uterus that connects to the vagina; a canal between the uterus and vagina.

Signup and view all the flashcards

Fallopian Tubes

Tubes connecting ovaries to the uterus, guiding the oocyte to the uterus for potential fertilization.

Signup and view all the flashcards

Ovaries

Female gonads; produce eggs and sex hormones.

Signup and view all the flashcards

Follicular Phase

First part of the menstrual cycle; marked by follicle development.

Signup and view all the flashcards

Luteal Phase

Second part of the menstrual cycle; marked by corpus luteum development.

Signup and view all the flashcards

LH Surge Trigger

High estradiol levels cause a sudden increase in luteinizing hormone (LH).

Signup and view all the flashcards

Ovulation Timing

Oocyte release from follicle roughly 36 hours after LH surge.

Signup and view all the flashcards

Corpus Luteum Function

Produces progesterone to support uterine lining after ovulation.

Signup and view all the flashcards

No Fertilization Outcome

Corpus luteum degenerates, progesterone drops, and menstruation follows.

Signup and view all the flashcards

Fertilization Outcome

Implanted oocyte releases hCG, maintaining the corpus luteum and progesterone level to support a pregnancy.

Signup and view all the flashcards

Fecundability Definition

Probability of conceiving, often expressed as a percentage.

Signup and view all the flashcards

Infertility Definition

Inability to conceive after one year of regular, unprotected sexual intercourse.

Signup and view all the flashcards

Primary Infertility

Infertility when pregnancy has never occurred.

Signup and view all the flashcards

Secondary Infertility

Infertility after a previous pregnancy.

Signup and view all the flashcards

Common Female Infertility Causes

Ovulatory disorders, endometriosis, pelvic adhesions, tubal blockage, uterine/tubal abnormalities, and hyperprolactinemia.

Signup and view all the flashcards

.gov websites

Official websites of the U.S. Federal government.

Signup and view all the flashcards

Female Reproductive System

System of internal and external organs responsible for menstruation, procreation, egg production, hormone regulation, and fetal development.

Signup and view all the flashcards

Reproductive Years

Period between menarche (first period) and menopause (12 consecutive months without a period).

Signup and view all the flashcards

Menstrual Cycle

Cyclic release of an egg from the ovary.

Signup and view all the flashcards

Ovulation

Release of a mature egg from the ovary.

Signup and view all the flashcards

Fertilization/Conception

Union of sperm and egg.

Signup and view all the flashcards

Gestation

Period of pregnancy, typically 9 months.

Signup and view all the flashcards

Contraception

Methods to prevent pregnancy.

Signup and view all the flashcards

Estrogen

Hormone affecting reproductive cycle and bone growth.

Signup and view all the flashcards

Transformation Zone

Area between cervix's inner and outer linings.

Signup and view all the flashcards

Pap Tests

Screening test for cervical cancer.

Signup and view all the flashcards

Estrogen Positive Feedback

Estrogen stimulates the hypothalamus to increase GnRH and triggers a LH surge; leading to ovulation.

Signup and view all the flashcards

Oogonia

Germ cells in females, rapidly dividing in utero to create primary oocytes.

Signup and view all the flashcards

Primary Oocytes

Immature egg cells, arrested in Prophase I until puberty.

Signup and view all the flashcards

Primordial Follicle

Structure surrounding a primary oocyte, containing granulosa and theca cells; an early follicle stage.

Signup and view all the flashcards

Menarche

First menstrual cycle, marking the onset of a female's reproductive years and resuming meiosis.

Signup and view all the flashcards

Ovum

Mature female gamete, ready for fertilization, after expelling the second polar body.

Signup and view all the flashcards

Vulva

External female genitalia, including the labia, clitoris, and vaginal opening.

Signup and view all the flashcards

Vagina

Fibromuscular canal connecting the vulva to the cervix.

Signup and view all the flashcards

Uterus

Organ where a fertilized egg implants and develops, consisting of corpus and cervix.

Signup and view all the flashcards

Cervix

Lower part of the uterus that connects to the vagina; a canal between the uterus and vagina.

Signup and view all the flashcards

Fallopian Tubes

Tubes connecting ovaries to the uterus, guiding the oocyte to the uterus for potential fertilization.

Signup and view all the flashcards

Ovaries

Female gonads; produce eggs and sex hormones.

Signup and view all the flashcards

Follicular Phase

First part of the menstrual cycle; marked by follicle development and increasing estrogen.

Signup and view all the flashcards

Luteal Phase

Second part of the menstrual cycle; marked by corpus luteum development.

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LH Surge

A sudden increase in luteinizing hormone (LH) concentration, triggered by high estrogen levels, leading to ovulation.

Signup and view all the flashcards

LH Surge Trigger

High estradiol levels cause a sudden increase in luteinizing hormone (LH).

Signup and view all the flashcards

Ovulation Timing

Oocyte release from follicle roughly 36 hours after LH surge.

Signup and view all the flashcards

Corpus Luteum Function

Produces progesterone to support uterine lining after ovulation.

Signup and view all the flashcards

No Fertilization Outcome

Corpus luteum degenerates, progesterone drops, and menstruation follows.

Signup and view all the flashcards

Fertilization Outcome

Oocyte implants, releasing hCG, maintaining corpus luteum and progesterone level.

Signup and view all the flashcards

Fecundability

The ability to conceive, often expressed as a percentage.

Signup and view all the flashcards

Infertility Definition

Inability to conceive after one year of regular, unprotected sexual intercourse.

Signup and view all the flashcards

Primary Infertility

Infertility in individuals who have never conceived.

Signup and view all the flashcards

Secondary Infertility

Infertility in those who have conceived previously but are now experiencing infertility.

Signup and view all the flashcards

Common Female Infertility Causes

Ovulatory disorders, endometriosis, pelvic adhesions, tubal blockage, uterine/tubal abnormalities, and hyperprolactinemia.

Signup and view all the flashcards

Vulva

The collective term for the external female reproductive organs.

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Mons Pubis

A pad of fat located above the pubic bone.

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Labia Majora

Large folds of skin covering the external genitalia.

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Labia Minora

Smaller folds of skin inside the labia majora.

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Clitoris

An organ rich in nerves, sensitive to touch.

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Hymen

A thin membrane that partially covers the vaginal opening.

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Vagina

A muscular canal that connects the vulva to the uterus.

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Female Reproductive Organs Location

Primarily located within the pelvic cavity.

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Ovaries

Female gonads that produce oocytes.

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Oocyte

The female gamete.

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LH surge

Sudden increase in luteinizing hormone, triggering ovulation.

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Ovulation

Release of the egg from the ovary.

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Corpus Luteum

Endocrine structure formed from the ruptured follicle after ovulation; produces progesterone.

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Progesterone

Hormone maintaining pregnancy.

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Luteal phase

Phase of ovarian cycle after ovulation, characterized by progesterone production.

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Uterine tubes

Conduits for oocyte transport from ovary to uterus.

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Fimbriae

Finger-like projections at the end of uterine tubes, capturing the oocyte.

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Ampulla

Middle region of uterine tube where fertilization typically occurs.

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Cilia

Hair-like structures lining uterine tubes; move oocyte toward uterus.

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Uterus

Muscular organ that supports growing embryo.

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Corpus albicans

Nonfunctional scar tissue formed when the corpus luteum degenerates.

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Pelvic inflammatory disease (PID)

Infection of female reproductive organs, potentially leading to infertility.

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Mitochondrial DNA Inheritance

Mitochondrial DNA is passed down from the mother to the offspring.

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Folliculogenesis

The process of ovarian follicle growth and development leading to ovulation.

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Ovarian Follicle

A structure in the ovary that contains an oocyte (egg) and supporting cells, growing and developing until ovulation.

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Atresia

The process where ovarian follicles die during development.

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Primordial Follicle

The resting stage of ovarian follicles in a newborn female, containing a single layer of granulosa cells.

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Primary Follicle

An immature growing follicle; a transition layer from primordial, with a single layer of granulosa cells that become cuboidal.

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Secondary Follicle

A follicle that has developed a multi-layered granulosa layer.

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Tertiary Follicle

A mature follicle containing an antrum (fluid-filled space) in the outer layers.

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Zona Pellucida

A thin acellular membrane secreted by the primary oocyte, critical for fertilization.

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Follicular Fluid

Fluid that collects in the antrum of a growing follicle.

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Dominant Follicle

The single follicle that survives the reduction in FSH and ovulates.

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LH Surge

A sudden increase in LH levels, triggered by high estrogen, leading to ovulation.

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Follicular Phase

The phase of the ovarian cycle where follicles grow and secrete estrogen.

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Estrogen Positive Feedback

High levels of estrogen stimulate further LH release, leading to a surge and ovulation.

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Vagina Structure

The vagina has three layers: an outer fibrous adventitia, a middle smooth muscle layer, and an inner mucous membrane with folds called rugae.

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Vaginal Function in Childbirth

The middle and inner layers of the vagina allow for expansion during intercourse and childbirth.

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Hymen

A thin, perforated membrane that may partially cover the vaginal opening.

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Hymen Rupture

Hymen can be broken by physical activity, intercourse, or childbirth.

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Bartholin's Glands

Glands near the clitoris that secrete mucus to keep the vaginal area moist.

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Vaginal Flora

The vagina has beneficial bacteria (Lactobacillus) that maintain an acidic pH to protect against infection.

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Douching

Washing out the vagina with fluid, which can disrupt healthy bacteria and increase infection risk.

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Ovaries Location

Oval-shaped female gonads located in the pelvic cavity, connected to the uterus by ligaments.

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Ovary Support

The mesovarium, suspensory ligament, and ovarian ligament support and connect the ovary to other structures.

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Ovary Layers

The ovary has an outer epithelium, a dense connective tissue layer (tunica albuginea), cortex (containing ovarian stroma), and inner medulla (containing blood vessels).

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Ovarian Follicle

A grouping of an oocyte and its supporting cells within the ovary's cortex.

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Oogenesis

The process of female gamete (egg) production, starting with oogonia in fetal development.

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Primary Oocytes

Immature egg cells formed from oogonia during fetal development, arrested in meiosis I until puberty.

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Ovulation

The release of a secondary oocyte from the ovary.

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Secondary Oocyte

A larger cell produced during meiosis, containing most of the cytoplasm and destined to leave the ovary.

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Polar Bodies

Smaller cells produced during meiosis that eventually disintegrate.

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Ovum Formation

A secondary oocyte becomes a haploid ovum only after fertilization by a sperm.

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Zygote

The first diploid cell of a new offspring, formed by the fusion of sperm and egg.

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Maternal Cytoplasm

The cytoplasm of the ovum provides nutrients to the zygote during its development.

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High Estrogen Feedback

High estrogen levels lead to a decrease in FSH and follicle atresia, but eventually cause a positive feedback loop, triggering an LH surge.

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Ovulation Timing

In a typical 28-day cycle, ovulation happens around day 14, marking the end of the follicular phase.

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Corpus Luteum

The corpus luteum forms from the collapsed follicle after ovulation and produces progesterone to prepare the uterus for potential pregnancy.

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Secretory Phase

Endometrial lining thickens, secretes nutrients, in preparation for implantation, guided by progesterone.

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No Fertilization Outcome

If fertilization doesn't occur, the corpus luteum degenerates, progesterone drops, and the uterine lining sheds (menstruation).

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LH Surge Trigger

High estrogen levels cause a surge in luteinizing hormone (LH), prompting ovulation.

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Birth Control Pill Function

Birth control pills prevent ovulation by maintaining consistent estrogen and progesterone levels, stopping FSH and LH release.

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Progesterone's Role

Progesterone, produced by the corpus luteum, prepares the uterine lining for implantation.

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Hormonal Birth Control Disruption

Skipping or delaying birth control pills disrupts the hormonal balance, increasing the chances of ovulation.

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Breast Tissue Response

Breast tissue changes in response to hormonal fluctuations (estrogen/progesterone) during the menstrual cycle, causing potential swelling or tenderness.

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Broad Ligament

A fold of peritoneum that primarily supports the uterus, attaching it to the pelvic wall.

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Round Ligament

Attaches the uterus near uterine tubes and extends to labia majora.

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Uterosacral Ligament

Stabilizes the uterus posteriorly, connecting cervix to pelvic wall.

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Perimetrium

Outermost layer of the uterus, a serous membrane of epithelial tissue.

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Myometrium

Thick muscle layer of the uterus, responsible for contractions.

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Endometrium

Innermost lining of the uterus, containing the stratum basalis & functionalis.

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Stratum Basalis

Thin, un-shedding layer of the endometrium, adjacent to the myometrium.

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Stratum Functionalis

Thick layer of the endometrium that grows & sheds, and contains endometrial glands.

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Menstrual Cycle Phases

Three phases: menses, proliferative & secretory. Involves buildup and shedding of the uterine lining.

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Menses Phase

Phase where uterine lining is shed, corresponding to menstrual bleeding.

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Proliferative Phase

Phase where endometrial lining rebuilds due to estrogen production.

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Secretory Phase

Phase where the endometrial lining thickens further due to progesterone, preparing for implantation.

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Vulva

Collective term for the external female genitalia.

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Mons Pubis

Pad of fat located over the pubic bone, often covered in pubic hair after puberty.

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Labia Majora

Hair-covered folds of skin protecting the external genitalia.

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Labia Minora

Thinner, pigmented folds of skin medial to the labia majora, protecting the urethra.

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Clitoris

Sensitive organ rich in nerves, crucial for sexual sensation & orgasm

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Hymen

Thin membrane sometimes partially covering vaginal opening.

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Vagina

Muscular canal connecting the vulva to the uterus; entrance and exit.

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Ovaries

Female gonads that produce oocytes and reproductive hormones.

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Oocyte

The immature egg produced by the ovaries.

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Vagina Structure

The vagina has three layers: adventitia (outer fibrous layer), smooth muscle (middle), and mucous membrane with rugae (inner).

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Vaginal Rugae

Transverse folds in the inner lining of the vagina that allow for expansion during intercourse and childbirth.

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Hymen

A thin, membrane-like structure that partially covers the vaginal opening.

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Bartholin's Glands

Glands near the clitoris that secrete mucus to keep the vaginal area moist.

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Normal Vaginal Microbiota

A natural population of microorganisms in the vagina, predominantly Lactobacillus, which helps protect against infection.

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Lactobacillus

A beneficial type of bacteria in the vagina that produces lactic acid.

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Vaginal Acidity

The acidic environment in the vagina (pH below 4.5) created by lactic acid, inhibiting the growth of harmful bacteria.

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Douching

Washing out the vagina with fluid, which can disrupt the natural balance of microorganisms and increase infection risk.

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Ovaries

Paired female gonads that produce ova and sex hormones, like estrogen and progesterone.

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Ovarian Surface Epithelium

The outer covering of the ovary; made of cuboidal epithelial cells.

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Ovarian Cortex

Outer part of the ovary containing follicles—structures that hold oocytes.

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Ovarian Medulla

Inner portion of the ovary, containing blood vessels, nerves, and lymph vessels.

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Ovarian Follicle

A structure in the ovary that contains a developing oocyte (egg) surrounded by supporting cells.

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Oogenesis

The process of producing female gametes (ova) from oogonia.

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Oogonia

Female germ cells that divide by mitosis to form primary oocytes during fetal development.

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Primary Oocyte

An immature egg cell arrested in meiosis I until puberty.

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Ovulation

The release of a mature oocyte from the ovary.

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Secondary Oocyte

The larger daughter cell produced during meiosis after a primary oocyte resumes meiosis and continues the process to form a secondary oocyte.

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Ovum

Mature egg capable of fertilization.

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LH Surge

A sudden increase in luteinizing hormone (LH), triggering ovulation.

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Ovulation

Release of the oocyte from the ovary.

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Corpus Luteum

Structure that forms from the collapsed follicle after ovulation, producing progesterone.

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Progesterone

Hormone crucial for pregnancy maintenance.

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Luteal Phase

Second half of the ovarian cycle, focused on corpus luteum function.

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Uterine Tubes

Conduits connecting ovaries to the uterus, guiding the oocyte.

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Fimbriae

Finger-like projections at the end of the uterine tubes.

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Fertilization

Union of sperm and egg within the uterine tube.

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Implantation

Attachment of the fertilized egg (blastocyst) to the uterine wall.

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Corpus Albicans

Nonfunctional scar tissue that forms from the corpus luteum if pregnancy does not occur.

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Pelvic Inflammatory Disease (PID)

Infection of the female reproductive organs, potentially leading to infertility.

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Maternally Inherited mtDNA

Mitochondrial DNA is passed down through the maternal line, tracing ancestry through female relatives.

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Folliculogenesis

The process of ovarian follicle growth and development leading to ovulation.

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Atresia

The death of ovarian follicles that occurs during follicular development.

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Primordial Follicle

The resting stage of ovarian follicles. Present at birth.

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Primary Follicle

Immature ovarian follicle responding to recruitment signals after puberty and transitioning from flat to cuboidal granulosa cells.

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Secondary Follicle

A larger follicle with an increased diameter and outer layer of connective tissue, and theca cells; granulosa cells proliferate.

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Tertiary Follicle

An ovarian follicle with a fully developed antrum and multiple layers of granulosa cells; a mature follicle.

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Zona Pellucida

A thin, acellular membrane secreted by the primary oocyte in the growing follicle.

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Follicular Fluid

The fluid collecting between granulosa cells in the secondary follicle.

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Dominant Follicle

The follicle that survives the decline in FSH and ovulates.

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LH Surge

A surge in luteinizing hormone, triggered by high estrogen levels, leading to ovulation.

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Follicular Phase

The phase in the ovarian cycle marked by growing tertiary follicles and increased estrogen production.

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GnRH

Hormone from the hypothalamus that triggers FSH and LH production in the anterior pituitary gland.

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FSH

Hormone, produced in the anterior pituitary, that stimulates follicle growth.

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LH

Hormone produced in the anterior pituitary that stimulates the theca and granulosa cells to produce estrogens.

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Broad Ligament

A fold of peritoneum that supports the uterus, attaching it to the pelvic wall.

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Round Ligament

Attaches to the uterus near uterine tubes and extends to labia majora; helps support.

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Uterosacral Ligament

Stabilizes uterus posteriorly by connecting cervix to pelvic wall.

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Perimetrium

Outermost layer of the uterus; serous membrane, epithelial tissue.

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Myometrium

Thick middle layer of smooth muscle; responsible for contractions during labor and menstruation.

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Endometrium

Innermost layer of the uterus with two layers (basalis and functionalis); for implantation and menstruation.

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Stratum Basalis

Endometrial layer that does not shed during menstruation.

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Stratum Functionalis

Endometrial layer that grows and thickens then sheds; site of implantation.

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Spiral Arteries

Branches off uterine arteries that supply the thickened functional layer.

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Menstruation (Menses)

Shedding of the stratum functionalis layer of the endometrium when no implantation occurs.

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Menarche

The first menstrual period.

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Proliferative Phase

The menstrual cycle phase where the endometrium rebuilds.

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Secretory Phase

Phase of menstrual cycle; endometrium thickens under influence of progesterone.

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Corpus Luteum

Structure in the ovary that develops after ovulation and produces progesterone.

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Follicular Phase

The phase before ovulation in which follicles mature, increasing estrogen production.

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Luteal Phase

Phase after ovulation where the corpus luteum produces progesterone.

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High Estrogen Negative Feedback

High estrogen levels cause a decrease in FSH production, leading to follicle atresia (death of follicles).

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Positive Feedback Ovulation

High estrogen levels from a dominant follicle trigger an LH surge, leading to ovulation.

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Ovulation Day

In a typical 28-day cycle, ovulation occurs roughly on day 14.

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Proliferative Phase End

Ovulation marks the end of the proliferative phase and follicular phase of the menstrual cycle.

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Uterine Tube Contractions

High estrogen levels increase uterine tube contractions, helping move the ovulated egg.

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Vaginal Acidity

High estrogen slightly decreases vaginal acidity, making it more favorable for sperm.

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Corpus Luteum Formation

The luteinization of granulosa cells forms the corpus luteum, which produces progesterone.

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Luteal Phase Start

The development of the corpus luteum marks the beginning of the luteal phase.

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Secretory Phase Uterus

Progesterone from the corpus luteum causes the uterine lining to thicken and secrete nutrients during the secretory phase.

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Fertilization Support

If fertilization occurs, uterine fluid nourishes the developing embryo.

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Spiral Arteries Development

If fertilization occurs, spiral arteries develop to provide blood to the thickened uterine lining.

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Corpus Luteum Degradation

If no pregnancy occurs, the corpus luteum degrades into the corpus albicans.

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Menstruation Trigger

Degradation of the corpus luteum causes a drop in progesterone and estrogen, leading to menstruation (shedding of the uterine lining).

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Breast Function

Breasts are accessory reproductive organs that produce milk for infants (lactation).

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Lactiferous Ducts

Milk exits the breast through 15-20 lactiferous ducts opening on the nipple.

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Hormonal Birth Control

Birth control pills prevent ovulation by providing constant estrogen and progesterone.

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FSH and LH Suppression

Constant estrogen and progesterone levels suppress FSH and LH, preventing follicle development and ovulation.

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Endometrial Thickening

Estrogen in birth control pills still causes some endometrial thickening, just less than a normal cycle.

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Menses in Birth Control

Menses happens during the inactive pill week of hormonal birth control.

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Vulva

Collective term for the external female genitalia.

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Mons Pubis

Pad of fat covering the pubic bone, often covered with pubic hair.

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Labia Majora

Larger folds of hair-covered skin, enclosing the other external genitalia

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Labia Minora

Smaller folds of skin, protecting the urethra and vaginal opening.

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Clitoris

Organ rich in nerves, important for sexual sensation and orgasm.

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Hymen

Thin membrane sometimes partially covering the vaginal opening.

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Vagina

Muscular canal connecting vulva to cervix; birth canal and menstrual flow.

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Mitochondrial DNA Inheritance

Mitochondrial DNA is passed down from the mother to her children.

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Folliculogenesis

The process of follicle growth and development in the ovaries.

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Ovarian Follicle

An oocyte and its supporting cells in the ovary.

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Ovulation

The release of a mature egg from the ovary.

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Atresia

The death of ovarian follicles.

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Primordial Follicle

The resting, immature follicle present in a newborn girl.

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Primary Follicle

Immature follicle that begins growing after puberty.

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Secondary Follicle

A follicle with multiple layers of cells and a fluid-filled space (antrum) forming.

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Tertiary Follicle

A large, mature follicle containing a secondary oocyte, ready for ovulation.

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Dominant Follicle

The follicle that survives and ovulates.

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Estrogen Positive Feedback

High estrogen levels trigger a surge in LH, leading to ovulation.

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LH Surge

A large increase in LH, stimulating ovulation.

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LH Surge

A sudden increase in luteinizing hormone levels, triggering ovulation.

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Ovulation

Release of the oocyte from the ovary.

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Corpus Luteum

Structure that forms from the ruptured follicle; produces progesterone.

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Progesterone

Hormone crucial for pregnancy maintenance.

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Luteal Phase

Post-ovulatory phase, characterized by corpus luteum activity.

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Uterine Tubes

Connect ovaries to uterus; facilitate oocyte transport.

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Fimbriae

Finger-like projections of the uterine tube, near the ovary.

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Fertilization

Union of sperm and egg.

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Corpus Albicans

Non-functional scar tissue; result of corpus luteum degeneration if no pregnancy.

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Uterus

Muscular organ nourishing the embryo during pregnancy.

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Cervix

Lower part of the uterus connecting to the vagina.

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Broad Ligament Function

Supports the uterus within the pelvic cavity by attaching to the pelvic wall.

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Round Ligament Attachment

Attaches to the uterus near uterine tubes and extends to the labia majora.

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Uterosacral Ligament Role

Stabilizes the uterus posteriorly by connecting to the cervix and the pelvic wall.

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Perimetrium Composition

The outer serous membrane of the uterus, made of epithelial tissue.

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Myometrium Function

The middle muscular layer of the uterus, responsible for contractions during labor and menstruation.

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Endometrium Layers

Inner lining of the uterus, with two layers: stratum basalis and stratum functionalis.

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Stratum Basalis Function

The deeper layer of the endometrium that does not shed during menstruation.

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Stratum Functionalis Role

The thickened layer of the endometrium that grows and sheds during the menstrual cycle.

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Spiral Arteries Supply

Branches of the uterine artery that supply the stratum functionalis during the luteal phase.

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Implantation Site

The stratum functionalis of the endometrium provides the site for the fertilized egg to implant.

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Menstruation Cause (No Fertilization)

Without fertilization, the corpus luteum degrades, progesterone declines, causing endometrial shedding.

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Proliferative Phase Trigger

The proliferative phase of the menstrual cycle occurs as estrogen levels rise, stimulating endometrial rebuilding.

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Menses Phase Timing

The menses phase occurs during the early follicular phase, when progesterone is low.

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Menstrual Cycle Length Variation

The length of the menstrual cycle varies among women, typically from 21 to 32 days.

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Vaginal Walls Structure

The vagina has three layers: an outer fibrous adventitia, a middle smooth muscle layer, and an inner mucous membrane with folds called rugae.

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Vaginal Expansion

Combined muscle and mucous layers allow vagina expansion for intercourse and childbirth.

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Hymen

Thin, perforated membrane partially covering the vaginal opening.

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Hymen Rupture

Hymen can break due to exercise, sex, or childbirth.

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Bartholin's glands

Glands near the clitoris that secrete mucus to keep the area moist.

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Vaginal Microbiome

Vagina has beneficial bacteria, mainly Lactobacillus, that maintain a healthy acidic environment.

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Lactobacillus

Predominant bacteria type in a healthy vagina. It secretes lactic acid maintaining the acidic environment.

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Vaginal Acidity

The acidic pH (below 4.5) in the vagina makes it less hospitable to harmful pathogens.

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Douching Disrupts

Washing the vagina with fluids disrupts the healthy microbiome, increasing risk of infections.

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Ovarian Location

Ovaries are almond-shaped organs in the pelvic cavity, supported by the mesovarium and ligaments.

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Ovarian Support

The mesovarium, suspensory ligament, and ovarian ligament hold the ovaries in place.

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Ovarian Layers

Ovaries have an outer epithelium, a dense connective tissue (tunica albuginea), an outer cortex, and an inner medulla.

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Ovarian Cortex

The outermost layer of the ovary, containing the ovarian stroma and developing follicles.

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Ovarian Follicle

An oocyte and its surrounding supporting cells in the ovarian cortex.

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Oogenesis

The process of producing egg cells (ova) from oogonia in the female reproductive system.

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Oogonia

Germ cells in female that make primary oocytes during fetal development by mitosis.

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Primary Oocytes

Immature eggs produced by oogonia that are arrested in meiosis I until puberty.

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Ovarian Oocyte Number

Oocyte number initially high in infancy, decreases significantly by puberty; and is zero by menopause.

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Ovulation

The release of a secondary oocyte from the ovary.

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Secondary Oocyte

The larger daughter cell produced by meiosis, which will eventually exit the ovary during ovulation.

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Polar Bodies

Smaller cells produced during oogenesis that disintegrate after meiosis.

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Ovum formation

The transformation of the secondary oocyte into a haploid ovum, occurring only through successful fertilization.

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Ovum Cytoplasm

The ovum has a large amount of cytoplasm to support the early embryo.

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Maternal Cytoplasmic Origin

The cytoplasm and cytoplasmic organelles of the developing embryo are inherited from the mother.

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High Estrogen and FSH

High estrogen levels lead to a decrease in FSH (follicle-stimulating hormone) due to negative feedback, causing atresia of most developing follicles.

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Positive Feedback and LH Surge

Elevated estrogen production from the dominant follicle triggers a positive feedback loop, stimulating a surge in LH (luteinizing hormone), leading to ovulation.

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Ovulation Day

In a typical 28-day cycle, ovulation occurs around day 14, marking the end of follicular and proliferative phases.

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Ovulation and Uterine Tube Contractions

High estrogen levels cause uterine tube contractions to help move the ovulated oocyte for fertilization.

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Vaginal Acidity and Sperm

High estrogen levels slightly reduce vaginal acidity, making it a more favorable environment for sperm.

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Corpus Luteum Formation

The luteinization of granulosa cells in the collapsed follicle creates the corpus luteum, which produces progesterone, marking the beginning of the luteal phase.

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Secretory Phase and Progesterone

Progesterone from the corpus luteum in the uterus starts the secretory phase of the cycle, preparing the uterine lining for implantation.

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Endometrial Gland Secretion

Endometrial glands secrete a fluid rich in glycogen in the secretory phase, which nourishes an embryo if fertilization occurs.

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Spiral Arteries and Pregnancy

If fertilization happens, spiral arteries develop to provide blood to the thickened stratum functionalis of the uterus.

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Corpus Luteum Degradation

If no pregnancy occurs, the corpus luteum degrades into the corpus albicans, causing estrogen and progesterone levels to fall.

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Menstruation and Spiral Artery Constriction

Falling hormone levels cause spiral artery constriction, reducing blood supply, leading to endometrial tissue death and menstruation (the first day of a new cycle).

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Breast Function

Breasts provide milk to infants through lactation, a process of milk production.

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Areola and Nipple

The pigmented areola, surrounding the nipple, produces lubricating fluid during breastfeeding, protecting the nipple from injuries.

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Lactiferous Ducts

Milk exits the breast through 15-20 lactiferous ducts that end near the nipple surface; these ducts extend from the lactiferous sinus.

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Mammary Gland Structure

Mammary glands, modified sweat glands, produce milk in clusters called alveoli; these alveoli are stimulated for milk release.

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Hormonal Birth Control

Hormonal birth control uses negative feedback to suppress ovulation by keeping estrogen and progesterone at stable levels.

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Birth Control Pill Composition

Some pills have active hormone-containing pills and inactive placebo pills to trigger menstruation.

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Hormonal Birth Control and FSH/LH

By maintaining continuous hormone levels, hormonal birth control prevents FSH and LH release, stopping follicular maturation and ovulation.

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Study Notes

Female Reproductive System Overview

  • The female reproductive system is composed of internal and external organs for menstruation and procreation.
  • Its function involves producing eggs, regulating hormones, and developing fertilized eggs into fetuses.
  • Reproductive years span from menarche (first period) to menopause (no period for 12 months).

Menstrual Cycle

  • Cyclical egg release from the ovary is normal.
  • This release can be fertilized by sperm (male gametes).
  • This process leads to gestation (pregnancy), typically lasting 9 months or 3 trimesters.
  • The gestation results in one or more fetuses (infants).

Tissues of the Reproductive System

  • Transformation zone: Squamocolumnar epithelium (Pap smears); common cervical cancer site
  • Endocervix: Simple columnar epithelium
  • Breast: Tissue development in puberty, ducts in puberty and pregnancy, and milk secretion post-partum
  • Vagina: Epithelial mucosa cell proliferation influenced by estrogen (varies with menopause)
  • Bone: Supports bone growth, inhibits bone loss (osteoclasts), prevents osteoporosis

Contraception and Hormones

  • Contraception: Suppresses hormones GnRH (hypothalamus), LH, and FSH to prevent ovulation.
  • Estrogen (estrodiol): Maintains reproductive function. Has positive feedback effect during ovulation, increasing GnRH pulse frequency and causing LH surge

Gamete Development

  • Female gametes (eggs) originate from germ cells (oogonia).
  • Oogonia rapidly multiply in the womb (in utero) until 7 million germ cells form by month 7.
  • Most oogonia disappear, and remaining cells (primary oocytes) begin meiosis I but arrest, awaiting menarche.
  • A primordial follicle (granulosa and theca cells) surrounds each oocyte.
  • Follicles mature via granulosa cell proliferation, and oocyte volume increases.
  • At menarche, some oocytes resume meiosis.
  • At fertilization, the oocyte is arrested in metaphase II.
  • The oocyte becomes an ovum after a second polar body is expelled. Meiosis continues with sperm activation.

External Genitalia (Vulva)

  • Includes labia majora, labia minora, clitoris, vulvar vestibule, urethral meatus, and vaginal orifice.
  • Labia majora flank labia minora, merging anteriorly to form the mons pubis.
  • The vulvar vestibule is medial to labia minora, containing urethral and vaginal openings. Bartholin glands are nearby.
  • The vagina is a flexible, muscular tube connecting vulva to the cervix.
  • The distal vagina is called the introitus.
  • The vagina's anterior wall abuts the bladder, and the posterior wall abuts the rectum.

Internal Genitalia

  • Uterus: Corpus (body), cervix, superior fundus, and inferior isthmus (lower uterine segment).
  • Cervix: Tubular structure connecting uterus and vagina.
  • Cervix Lining: Ectocervix (vaginal portion, stratified squamous epithelium) and endocervix (internal canal, columnar epithelium). Transformation zone marks the transition.
  • Fallopian tubes: Transport oocytes from ovaries to uterus.
    • Fimbriae: Finger-like projections near the ovaries.
    • Ampulla: Widest part of the tube.
    • Isthmus: Narrow part leading to the uterus.
    • Interstitial part: Part of the tube within the uterus.

Ovaries

  • The ovaries are female gonads: Sites of gametogenesis and hormone secretion.
  • Outer cortex: Follicle development site.
  • Inner medulla: Contains blood vessels and connective tissue.
  • Menarche: A woman's first menstrual bleed, signaling the start of reproductive years. This occurs with puberty (pubic hair growth, breast growth, etc.).
  • Follicle Development: Prior to each cycle several primordial follicles develop, one becoming dominant and developing into a Graafian follicle.
  • Ovulation: Graafian follicle releases (expels) an ovum from the ovary into the fallopian tube.
  • Corpus Luteum: Remaining follicle tissue after ovulation releases progesterone. Plays a role in maintaining the uterine lining.
  • Menstrual Cycle Phases:
    • Follicular phase: Menstrual bleeding to LH surge. Low estrogen and progesterone. Rising GnRH, FSH, and LH. Follicle maturation and estrogen production.
    • Ovulation: LH surge, oocyte release,
    • Luteal phase: LH surge to menstral bleeding start. Corpus luteum active, progesterone high (and estradiol).
    • Cycle Length: 28 days average. Luteal phase is 14 days, follicular varies
      • Fertilization absence: A drop in LH causes a decline in progesterone. Menstrual bleeding begins.
      • Fertilization presence: the implant in the uterine lining & corpus luteum is maintained by chorionic gonadotropin (hCG), progesterone & estradiol levels remain to facilitate uterine lining support

Infertility

  • Fecundability: Ability to conceive.
  • Infertility: Failure to conceive after one year of regular unprotected sex.
  • Common female factors: Ovulatory disorders, endometriosis, pelvic adhesions, tubal blockage, uterine/tubal abnormalities, hyperprolactinemia.

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