Question

Some important events in the human female reproductive cycle are given below. Arrange the events in a proper sequence.
A - Secretion of FSH,

B - Growth of corplus luteum,

C - Growth of the follicle and oogenesis,

D - Ovulation,

E - Sudden increase in the levels of LH

• A. $A\to D\to C\to E\to B$
• B. $B\to A\to C\to D\to E$
• C. $C\to A\to D\to B\to E$
• D. $A\to C\to E\to D\to B$

Answer 1

The correct option is D $A\to C\to E\to D\to B$

In human female reproductive cycle or menstrual cycle during the proliferative phase, the anterior lobe of pituitary gland secretes the Follicle Stimulating Hormone (FSH), which stimulates to ovarian follicles to secrete estrogens. During the second week of the reproductive cycle, most of the developing follicle die and usually one follicle continues to mature. Now the Luteinizing Hormone (LH) in blood, level increases by the pituitary gland. A small surge of FSH also occurs. Now ovulation takes place, which releases the immature egg into the abdominal cavity. During ovulation, the follicle breaks open and collapses under the continuous influence of Luteinizing Hormone (LH). It begins to enlarge and forms a yellowish structure, called corpus luteum or yellow body.

So the correct option is 'A→C→E→D→B'.