Which Gland Secretes Melatonin and is Concerned with Our Biological

Question

Which gland secretes melatonin and is concerned with our biological rhythms?
A) Pancreas
B) Adenohypophysis
C) Pineal gland
D) Adrenal gland

Accepted Answer

The pineal gland secretes melatonin and is involved in regulating our biological rhythms, such as our sleep-wake cycle. The pancreas secretes insulin and glucagon, the adenohypophysis secretes hormones that regulate various bodily processes, and the adrenal gland secretes hormones such as adrenaline and cortisol that are involved in the body's response to stress.