Arrange the various ovarian events occurring during a menstrual cycle in sequence:
(A) Maturation of follicle
(B) Development of primary follicle
(C) Ovulation
(D) Transformation of graafian follicle into corpus luteum
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (B), (A), (C), (D)
In each menstrual cycle a primary follicle develops (B), the follicle matures (A), ovulation (C) follows, and the Graafian follicle becomes the corpus luteum (D).
NCERT Extract:
Menstrual Cycle – “… The menstrual phase is followed by the follicular phase. During this phase, the primary follicles in the ovary grow to become a fully mature Graafian follicle and simultaneously the endometrium of uterus regenerates through proliferation. … Rapid secretion of LH leading to its maximum level during the mid-cycle called LH surge induces rupture of Graafian follicle and thereby the release of ovum (ovulation). The ovulation (ovulatory phase) is followed by the luteal phase during which the remaining parts of the Graafian follicle transform as the corpus luteum (Figure 2.9).”