Menstruation is triggered by a sudden decline in the amount of hormone secreted by corpus luteum. Identify the hormone.

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Follicle stimulating hormone

Luteinizing hormone

Progesterone

Estrogen

answer is C.

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Detailed Solution

The corpus luteum secretes large amounts of progesterone which is essential for maintenance of the endometrium and the pregnancy. Sudden fall in the level of progesterone due to regression of corpus luteum triggers the menstruation.

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