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Question

Biology Question on human reproduction

Which one of the following is the correct matching of the events occurring during menstrual cycle?

A

Proliferative phase : Rapid regeneration of myometrium and maturation of Graafian follicle

B

Secretory phase : Development of corpus luteum and increased secretion of progesterone

C

Menstruation : Breakdown of myometrium and ovum not fertilised

D

Ovulation : LHLH and FSHFSH attain peak level and sharp fall in the secretion of progesterone

Answer

Secretory phase : Development of corpus luteum and increased secretion of progesterone

Explanation

Solution

Secretory phase is also called as luteal phase. 316 The luteinising hormone or LH is secreted by the anterior lobe of pituitary gland. LH causes ovulation. LH stimulates cells of ovarian follicles to develop corpus luteum. Corpus luteum secretes large amount of progesterone.