Which of the following is the location where melatonin is synthesized and secreted?

Athyroid gland
Bpancreatic islets
Cpineal body
Dadrenal medulla

Correct answer: C. pineal body

Melatonin is produced by the pineal body in the brain. It regulates sleep-wake cycles and other physiological processes.

More Endocrine system and hormones MCQs