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pineal gland

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pineal gland

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Also known as pineal body, conarium, epiphysis cerebri

small endocrine gland found in most vertebrates, which produces melatonin; in humans, located in the epithalamus, in a groove where the two halves of the thalamus join; its shape and size resembles a pine nut, after which it is named

AI overview

The pineal gland is a small gland in the brain that produces melatonin, a hormone that helps regulate sleep and wake cycles. Located deep in the brain where two structures called the thalamus meet, it gets its name from its resemblance to a pine nut.

AI-generated from the Wikipedia summary — may contain errors.

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Encyclopedic overview

The pineal gland (also called the pineal body) 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. The shape of the gland resembles a pine cone, which gives it its name.

The pineal gland is located in the epithalamus, near the center of the brain, between the two hemispheres, tucked in a groove where the two halves of the thalamus join. It is one of the neuroendocrine secretory circumventricular organs in which capillaries are mostly permeable to solutes in the blood.

Excerpted from Wikipedia’s “pineal gland” article, available under the CC BY-SA 4.0 licence.

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