Female Reproductive System Overview

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Questions and Answers

What is the primary function of the labia majora?

  • To provide structural support to the vagina (correct)
  • To facilitate sexual pleasure during intercourse (correct)
  • To protect internal reproductive structures (correct)
  • To secrete hormones that regulate reproductive functions (correct)

Which of the following glands are involved in the secretion of mucus during sexual excitement?

  • Urethral glands
  • Sweat glands
  • Bartholin glands (correct)
  • Sebaceous glands

What structural feature denotes the clitoris's function in the female reproductive system?

  • A thin membrane covering the vaginal opening
  • A sensitive protrusion that enhances sexual pleasure (correct)
  • A pair of folds that protect the urethra
  • A glandular structure that produces hormones

Which area is described as the space located between the inner aspects of the labia minora?

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

At what point in development do the secondary sexual characteristics and reproductive system begin to function?

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

Which of the following statements is true regarding the hymen?

<p>It is a thin membrane that encircles the vaginal opening. (B)</p> Signup and view all the answers

Which component of the female reproductive system is responsible for producing sex cells?

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

What is the function of the labia minora?

<p>To protect the clitoris and vaginal opening (C)</p> Signup and view all the answers

Which portion of the cervix is located above the vaginal attachment?

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

How does the anteversion of the uterus affect its position relative to the vagina?

<p>The uterus is inclined anteriorly to the axis of the vagina. (D)</p> Signup and view all the answers

Which of the following correctly describes the role of the endometrium in the menstrual cycle?

<p>It undergoes cyclic changes due to hormonal influences. (D)</p> Signup and view all the answers

What is the typical duration of menstruation for most women?

<p>3 to 7 days (B)</p> Signup and view all the answers

Which organ is positioned anteriorly to the body of the uterus?

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

At what age does menarche typically occur?

<p>12-14 years (B)</p> Signup and view all the answers

What initiates the secretion of gonadotropin-releasing hormone (GnRH) toward the end of the menstrual cycle?

<p>Decreased blood levels of estrogen and progesterone (A)</p> Signup and view all the answers

Which hormone is primarily responsible for stimulating the development of ovarian graafian follicles?

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

Which layer of the uterus is known for its muscular composition?

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

What triggers the release of luteinizing hormone (LH) during the menstrual cycle?

<p>Positive feedback from increasing estrogen levels (B)</p> Signup and view all the answers

What happens to the corpus luteum if fertilization and implantation do not occur?

<p>It degenerates and progesterone levels decline (B)</p> Signup and view all the answers

Which phase of the uterine cycle involves the thickening of the endometrium due to estrogen production?

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

Which part of the fallopian tube is known as the site of fertilization?

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

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

<p>Prepares the endometrium for potential implantation (A)</p> Signup and view all the answers

Which uterine layer is primarily involved in cyclical changes influenced by ovarian hormones?

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

What is the role of GnRH in the hypothalamic-pituitary cycle?

<p>Stimulates FSH and LH secretion (D)</p> Signup and view all the answers

What is the primary function of progesterone during the secretory phase of the menstrual cycle?

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

During which phase of the ovarian cycle does the corpus luteum primarily secrete progesterone?

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

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

<p>It degenerates within 10-12 days (B)</p> Signup and view all the answers

What role does HCG play if fertilization occurs?

<p>It maintains corpus luteum activity (B)</p> Signup and view all the answers

What is the approximate size of an ovary?

<p>3 x 2 x 1 cm (C)</p> Signup and view all the answers

What occurs on days 27 and 28 of the menstrual cycle?

<p>The corpus luteum begins to degenerate (B)</p> Signup and view all the answers

What are the immature eggs found in the ovaries called?

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

Which hormone is primarily responsible for the thickening of the endometrium?

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

What is the primary function of the cervix during childbirth?

<p>To dilate and accommodate the passage of the fetus (C)</p> Signup and view all the answers

Which section of the uterus is described as the major portion?

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

What anatomical feature is located below the cervical canal?

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

Which glands are responsible for lubricating the external genitalia during sexual intercourse?

<p>Bartholin's glands (C)</p> Signup and view all the answers

What is the approximate length range of the vagina's anterior wall?

<p>8–9 cm (A)</p> Signup and view all the answers

The perineum in women is primarily located between which two anatomical structures?

<p>Vaginal opening and anal canal (B)</p> Signup and view all the answers

What is the role of the myometrium in the uterus?

<p>To provide muscle contractions during childbirth (C)</p> Signup and view all the answers

Which component of the internal genitalia is primarily responsible for connecting the uterus with the external environment?

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

Flashcards

Female External Genitalia

The visible external parts of the female reproductive system, including the mons pubis, labia majora, labia minora, clitoris, vestibule, and hymen.

Mons Pubis

A fatty pad overlying the pubic bone, covered in hair after puberty, protecting internal organs.

Labia Majora

Outer folds of skin protecting the internal female genitalia.

Labia Minora

Inner folds of skin inside the labia majora.

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Clitoris

Sensitive, erectile tissue homologous to the male penis, key for sexual pleasure.

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Vestibule

Area between labia minora, containing urethral and vaginal openings and bartholin glands.

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Hymen

Thin membrane partially covering the vaginal opening.

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Bartholin Glands

Secrete mucus during arousal, found in the vestibule.

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External Urethral Meatus

Triangular slit in the vulva where the urethra opens.

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Perineum

Muscle and tissue between the vagina and anus.

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Episiotomy

Surgical cut during childbirth to prevent perineal tearing.

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Vagina

Fibromuscular tube from vulva to uterus, for menstrual flow and childbirth.

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Cervix

Lower part of the uterus connecting to the vagina. It has the internal and external OS to regulate what goes in.

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Uterus

Pear-shaped organ where a baby develops.

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Fundus (Uterus)

Rounded upper region of the uterus, above fallopian tube openings.

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Body (Uterus)

Main part of the uterus.

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Isthmus (Uterus)

Narrow region between the body and cervix.

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Fallopian Tubes

Two tubes that transport egg from ovaries to uterus.

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Ovaries

Produce eggs and hormones.

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Cervix

Lower part of the uterus, divided into supravaginal and vaginal portions.

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Anteverted-anteflexed position

Uterus is tilted forward and slightly bent forward.

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Uterine layers

The uterus has three layers—endometrium (mucosa), myometrium (muscle), and perimetrium (outer layer).

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Ovarian cycle

Changes happening in the ovary during the menstrual cycle.

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Uterine cycle

Changes in the uterine lining during the menstrual cycle.

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Menstruation

Shedding of the uterine lining.

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Hypothalamus-pituitary-ovarian axis

The hormonal pathway that controls the menstrual cycle, involving the hypothalamus, pituitary gland, and ovaries.

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Menarche

The onset of menstruation.

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Ovarian Cycle Phases

The cyclical changes in the ovary during the menstrual cycle, consisting of follicular, ovulatory, and luteal phases.

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Follicular Phase

The phase of the ovarian cycle where the follicle matures, culminating in ovulation.

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Ovulatory Phase

The phase of the ovarian cycle where the mature egg is released from the ovary.

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Luteal Phase

The phase of the ovarian cycle after ovulation, characterized by the formation and function of the corpus luteum.

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Corpus Luteum

A temporary endocrine gland that forms from the ruptured follicle after ovulation and secretes progesterone.

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Progesterone

A hormone crucial for maintaining the uterine lining during pregnancy or the luteal phase; promotes uterine lining growth.

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Menstruation

The cyclical shedding of the uterine lining when fertilization doesn't occur.

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Implantation

The process of a fertilized egg attaching to the uterine wall.

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Fertilization Failure

The absence of fertilization of the ovum (egg).

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GnRH function

GnRH stimulates the anterior pituitary to release FSH and LH, regulating the female reproductive cycle.

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FSH function

Stimulates ovarian follicle development and estrogen production.

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Estrogen feedback

Increased estrogen levels trigger positive feedback on GnRH and LH release.

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LH surge timing

LH peaks around days 13-14 of a 28-day cycle.

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LH function (ovulation)

Triggers the release of a mature ovum (egg).

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Corpus luteum function

Develops after ovulation, secretes progesterone; aiding implantation.

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Uterine cycle phases

Menstrual, proliferative, secretory, and ischemic phases.

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Menstrual phase

Shedding of the endometrium.

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Proliferative phase of the cycle

Endometrium repair and thickening. FSH and estrogen.

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Fallopian tubes

Path for the ovum to the uterus; fertilization often happens here.

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Fallopian tube parts

Interstitial, isthmus, ampulla, and infundibulum.

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Endometrium

The inner lining of the uterus.

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Myometrium

The middle muscle layer of the uterus.

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Perimetrium

The outer layer of the uterus.

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Study Notes

Female Reproductive System

  • The female reproductive system is inactive until puberty.
  • The primary sex organs (gonads) are the ovaries.
  • Ovaries produce sex cells (gametes) and hormones (estrogen and progesterone).
  • These hormones are vital for reproductive development and sexual behavior, impacting other body tissues and organs.
  • The female reproductive system comprises soft tissues (internal and external genitalia) and bony pelvis.

External Genitalia

  • Mons Pubis: A fatty pad covering the symphysis pubis, becoming covered in hair at puberty. Function is to protect bones and internal organs.
  • Labia Majora: Outer lips of the vulva, large folds of fatty skin extending from the mons pubis to the perineum. Pubic hair covers the outer surface, while the inner surface is smooth and hairless, containing sebaceous and sweat glands.
  • Labia Minora: Inner lips of the vulva, thin folds of modified skin inside the labia majora. The folds surround the openings of the urethra and vagina. Protecting internal structures like the clitoris, urethra, and vagina.
  • Clitoris: A small, sensitive protrusion analogous to the male penis. Covered by a fold of skin (prepuce). Highly sensitive to stimulation and capable of becoming erect. Function is sexual pleasure.
  • Vestibule: The area between labia minora. Contains openings for the urethra and vagina, along with the Bartholin glands.

Internal Genitalia

  • Vagina: A fibromuscular tube connecting the vulva to the cervix. Located between the bladder and rectum. Functions as a passage for menstrual flow and birth canal.
  • Cervix: Connects the uterus to the vagina. The lower part of the uterus (1/3). The cervical canal communicates above with the uterine cavity and to the vagina. Protects against foreign bodies entering the uterus.
  • Uterus: Pear-shaped organ roughly the size of a clenched fist. Made of perimetrium, myometrium, and endometrium. Accommodates a growing fetus.
  • Fallopian Tubes: Two tubes leading from the uterus to the ovaries. They serve as a pathway for the ovum (egg) to the uterus.
  • Ovaries: The female gonads (sex glands). Oval-shaped, located on either side of the uterus. Produce mature eggs (ova) and hormones like estrogen.

Menstrual Cycle

  • The menstrual cycle is a monthly series of changes in a woman's body preparing for pregnancy.
  • Ovulation is the release of a mature egg from the follicle of one of the ovaries.
  • The process of the menstrual cycle involves the endometrium (lining of the uterus). It thickens in preparation for a fertilized egg and sloughs off if an egg isn't fertilized.
  • Cyclic changes in the endometrium caused by estrogen and progesterone (hormones produced by the ovaries).
  • Menstruation is the shedding of the uterine lining if fertilization doesn't occur.
  • The menstrual cycle typically lasts 28 days.
  • Hormones involved in female reproduction include estrogen, progesterone, and FSH, LH.

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