Define the term pineal gland
Define the term pineal gland?
Expert
The pineal gland, as well termed as pineal body or epiphysis, is located centrally in the head. It secretes hormone melatonin, a hormone generated at night and associated to the regulation of the circadian rhythm (or circadian cycle, wakefulness-sleep cycle). The Melatonin possibly regulates most of the body functions associated to the night-day alternation.
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