pineal gland
Pineal gland is a small endocrine gland located near the center of the brain in between two hemispheres. Its role is to secrete melatonin hormone that regulates the sleep patterns.
pineal gland
Pineal gland is a small endocrine gland located near the center of the brain in between two hemispheres. Its role is to secrete melatonin hormone that regulates the sleep patterns.