Chemical Coordination and IntegrationMedium
Question
Melatonin is secreted by
Options
A.skin
B.thymus
C.pituitary
D.pineal gland
Solution
The pineal gland (epiphysis) secretes the hormone melatonin which regulates the working of gonads by inhibiting gonadotropins and their effects. Its production is inhibited by exposure of animal to light.
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