Oogenesis and Female Reproductive Cycle

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Questions and Answers

What is the primary function of corpus luteum?

  • Regulating the LH Surge
  • Releasing the oocyte during ovulation
  • Forming the Graafian follicle
  • Secreting estrogen and progesterone (correct)

What triggers the completion of Meiosis II?

  • Increased estrogen secretion
  • The entry of sperm (correct)
  • Formation of corpus luteum
  • LH Surge

What happens to the corpus luteum in a non-pregnant cycle?

  • It triggers the LH Surge
  • It continues to secrete estrogen and progesterone
  • It becomes the Graafian follicle
  • It degenerates after 10 days (correct)

What is the primary function of estrogen during the follicular phase?

<p>Causing the proliferative phase of the uterine cycle (D)</p> Signup and view all the answers

What is the primary factor that stimulates the development of follicles at puberty?

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

What is the duration of the luteal phase in the ovarian cycle?

<p>15-28 days (D)</p> Signup and view all the answers

What hormone is secreted by the corpus luteum in addition to progesterone?

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

During which phase of the uterine cycle does the functional zone of the uterine endometrium become necrotic and is sloughed as menses?

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

What is the primary function of the basal zone of the uterine endometrium?

<p>To regenerate the functional zone (B)</p> Signup and view all the answers

What is responsible for the increase in thickness of the endometrium during the secretory phase?

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

During which days of the uterine cycle does the functional zone of the uterine endometrium regenerate from the basal zone?

<p>Days 5-14 (D)</p> Signup and view all the answers

What is the primary source of estrogen in the female circulation?

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

What is the primary function of the epididymis in the male reproductive system?

<p>Storage, protection, and maturation of sperm cells (A)</p> Signup and view all the answers

Which hormone stimulates the secretion of testosterone in Leydig cells?

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

What is the function of the bulbourethral gland (Cowper's gland) in the male reproductive system?

<p>Secretion of mucus that acts as a lubricant (C)</p> Signup and view all the answers

What is the role of the hypothalamic-pituitary-gonadal axis in males?

<p>Control of the secretion of male hormones (C)</p> Signup and view all the answers

What is the primary function of the prostate gland in the male reproductive system?

<p>Secretion of a milky fluid containing citric acid and fibrinolysin (B)</p> Signup and view all the answers

What is the primary function of the scrotum in the male reproductive system?

<p>Covers and protects the testes and holds them outside the body (A)</p> Signup and view all the answers

What stimulates the maturation of sperms by Sertoli cells?

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

At what stage do sperms acquire motility?

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

What is the main function of the blood-testis barrier?

<p>To prevent the entry of harmful substances from blood into the testes (C)</p> Signup and view all the answers

Which vitamin is essential for normal spermatogenesis?

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

What is the optimal temperature for spermatogenesis to occur?

<p>32-34°C (D)</p> Signup and view all the answers

What is the result of prolonged exposure to radiation, O2 lack, bacterial and chemical toxins on spermatogenesis?

<p>Depression of spermatogenesis (D)</p> Signup and view all the answers

What is the function of FSH in relation to Leydig cells?

<p>To increase the response of Leydig cells to LH (C)</p> Signup and view all the answers

What is the role of testosterone in spermatogenesis?

<p>To complete meiosis and spermiogenesis (A)</p> Signup and view all the answers

Which of the following is a secondary sex characteristic influenced by testosterone?

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

What is the effect of testosterone on behavior?

<p>It enhances aggressive behavior (B)</p> Signup and view all the answers

What is the function of Sertoli cells in relation to sperm?

<p>To prevent autoimmune destruction of sperm (C)</p> Signup and view all the answers

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