Biology Human Reproductive System Related

Review Biology Human Reproductive System related questions and content

Between puberty and menopause, monthly, the following occurs :

  • A. the maturation of a single secondary ovarian follicle;
  • B. the transformation of a primordial follicle into a secondary one;
  • C. the release of an oocyte;
  • D. the release of a de Graaf follicle;
Correct Answer: C

Rationale: The correct answer is C: the release of an oocyte. During the menstrual cycle, ovulation occurs where a mature egg (oocyte) is released from the ovary. This typically happens around the middle of the cycle in response to hormonal changes. This process is essential for fertilization and pregnancy to occur.

A, B, and D are incorrect because:
A: the maturation of a single secondary ovarian follicle - This occurs before ovulation, not during the menstrual cycle.
B: the transformation of a primordial follicle into a secondary one - This is an earlier stage in follicle development, not a monthly occurrence.
D: the release of a de Graaf follicle - The Graafian follicle is the mature follicle that releases the oocyte during ovulation, not a monthly event.