Question

Which gland secretes melatonin.. which plays an active role at nights?​

Answer 1

Pineal gland secrets melatonin.

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Answer 2

The pineal gland is a tiny endocrine gland found in the brain. It produces and secretes the hormone melatonin, which is a hormone that helps regulate biological rhythms such as sleep and wake cycles. The secretion of melatonin is inhibited by light and triggered by darkness.


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