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Pineal gland - Wikipedia The pineal gland (also known as the pineal body[1] or epiphysis cerebri) is a small endocrine gland in the brain of most vertebrates It produces melatonin, a serotonin -derived hormone, which modulates sleep patterns following the diurnal cycles [2]
Pineal gland | Definition, Location, Function, Disorders - Britannica pineal gland, endocrine gland found in vertebrates that is the source of melatonin, a hormone derived from tryptophan that plays a central role in the regulation of circadian rhythm (the roughly 24-hour cycle of biological activities associated with natural periods of light and darkness)
Pineal Gland - Physiopedia The pineal gland, a small, pine-cone shaped structure, is an endocrine gland located in the posterior aspect of the cranial fossa in the brain The pineal glands main role is to control the circadian cycle of sleep and wakefulness by secreting melatonin