Asked by DeAnna Woodard on Sep 29, 2024

What causes the human pineal gland to secrete melatonin

A)  signals from the retina 
B)  detection of light by the pineal gland 
C)  hard-wired circadian rhythms 
D)  signals from the suprachiasmatic nucleus

Pineal Gland

A small endocrine gland in the brain that produces melatonin, a hormone that regulates sleep-wake cycles.

Melatonin

A hormone that regulates sleep-wake cycles, produced by the pineal gland in the brain.

Suprachiasmatic Nucleus

A part of the brain located in the hypothalamus, responsible for controlling circadian rhythms.

  • Explore the idea of circadian rhythms and their impact on everyday activities.