Pineal Gland

Pineal Gland

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Credit: ANATOMICAL TRAVELOGUE/SCIENCE PHOTO LIBRARY

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Caption: Three-dimensional visualisation based on segmented human data of the pineal gland (yellow), a small organ located on the posterior part of the roof of the third ventricle, seen here below the corpus collosum. It is connected to the brain via a short stalk containing nerve fibers which communicate with the hypothalamus. The pineal gland secretes the hormone melatonin which regulates the circadian rhythms of the body. Its secretion during hours of darkness produces a hypnotic effect which results in sleep.

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Keywords: anatomical, anatomical illustration, anatomical illustrations, anatomy, body scans, chemical, collosum, corpus, corpus collosum, endocrine, endocrine system, endocrine systems, fiber, gland, homeostasis, hormonal, hormone, human body, hypnosis, hypnotic, hypothalami, hypothalamus, hypothalamuses, illustration, illustrations, medical, medical illustration, medical illustrations, melatonin, nerve, nerve fiber, nerve fibers, neuron, pineal, pineal gland, pineal glands, scan, sleep, sleeping, sleeps

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