Questions and Answers
Interstitial cells produce:
The clitoris:
During meiosis I, maternal and paternal chromosomes fuse together during the process called ________ to form a ________.
synapsis; tetrad
The nurse cells of the seminiferous tubules do all of the following, except that they:
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Arrange the four structures listed below into the order in which sperm pass from the testis to the urethral meatus:
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The portion of the uterine tube that ends in fingerlike fimbriae is the:
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The special type of cell division required to produce gametes is called:
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Inward projections of the tunica albuginea, known as septa, divide the testis into:
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The vulva includes all of the following, except the:
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Sperm production occurs in the:
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Each of the following statements concerning oogenesis is true, except that:
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The average length of the menstrual cycle is:
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The organ that provides mechanical protection and nutritional support for the developing embryo is the:
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During the menses:
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The pituitary hormone that stimulates the interstitial cells to secrete testosterone is:
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The spermatic cord is:
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A primary spermatocyte matures into ________ spermatids having ________ chromosomes.
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The inferior portion of the uterus that projects into the vagina is the:
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A rise in the blood levels of follicle-stimulating hormone at the beginning of the ovarian cycle is responsible for:
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The role of FSH in males is to:
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Study Notes
Interstitial Cells
- Interstitial cells primarily produce androgens, crucial for male reproductive health.
Clitoris
- Derived from similar embryonic structures as the male penis.
- Engorges with blood during sexual arousal.
- Contains erectile tissue analogous to the corpora cavernosa of the penis.
Meiosis I
- Maternal and paternal chromosomes fuse during synapsis to form a tetrad, essential for genetic diversity.
Nurse Cells
- Found in seminiferous tubules, these cells maintain the blood-testis barrier and support spermiogenesis.
- Do not secrete testosterone.
Sperm Pathway
- Sperm travel through the following order: epididymis, ductus deferens, ejaculatory duct, and finally into the urethra.
Uterine Tube Structure
- The distal segment of the uterine tube is known as the infundibulum, which features fingerlike fimbriae.
Gamete Production
- Meiosis is the specialized cell division required to produce gametes.
Testis Structure
- The tunica albuginea has inward projections called septa, dividing the testis into lobules filled with seminiferous tubules.
Components of the Vulva
- The vulva includes the labia majora, labia minora, clitoris, and mons pubis, but not the vagina.
Sperm Production
- Occurs in the seminiferous tubules of the testes.
Oogenesis Facts
- About 80% of a girl's oocytes are lost by birth.
- Oogenesis begins before birth, with ova developing from stem cells called oogonia.
Menstrual Cycle
- The average length of the menstrual cycle is approximately 28 days.
Uterus Function
- The uterus provides mechanical protection and nutritional support for the developing embryo.
Menstrual Phase
- During menstruation, the old functional layer of the uterine lining is sloughed off.
Hormonal Regulation
- Luteinizing hormone (LH) stimulates interstitial cells in males to secrete testosterone.
Spermatic Cord
- The spermatic cord comprises the ductus deferens, blood vessels, nerves, and lymphatics servicing the testis.
Primary Spermatocyte
- A primary spermatocyte matures into four spermatids, each containing 23 chromosomes.
Uterine Anatomy
- The cervix is the inferior portion of the uterus that projects into the vagina.
Follicle-Stimulating Hormone (FSH)
- A rise in FSH levels at the start of the ovarian cycle promotes follicle maturation.
FSH Role in Males
- FSH initiates sperm production in the testes, critical for male fertility.
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Description
Test your knowledge on key concepts of the reproductive system with these flashcards. This quiz covers essential terms and definitions, helping you to reinforce your understanding of interstitial cells and the clitoris. Perfect for students studying human biology.
