Q. Some important events in the human female reproductive cycle are given below. Arrange the events in proper sequence. I.Secretion of FSH II.Growth of cropus luteum III.Growth of the follicle and oogenesis IV.Ovulation V.Sudden increase in the levels of LH

A) $III \rightarrow I \rightarrow IV \rightarrow II \rightarrow V$
B) $I \rightarrow III \rightarrow V \rightarrow IV \rightarrow II$
C) $I \rightarrow IV \rightarrow III \rightarrow V \rightarrow II$
D) $II \rightarrow I \rightarrow III \rightarrow IV \rightarrow V$
Explanation

In human female reproductive cycle or menstrual cycle during proliferative phase, the anterior lobe of pituitary gland secretes the Follicle Stimulating Hormone (FSH), which stimulates to ovarian follicles to secrete oestrogens. During the second week of reproduction cycle, most of the developing follicle die and usually one follicle continues to mature. Now the Luteinzing Hormone (LH) in blood level increase by pituitary gland. A small surge of FSH also occurs. Now ovulation takes place, which releases immature egg into 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 strucyure, called corpus luteum or yellow body.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

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