pineal organ

pineal organ
pineal organ n PINEAL GLAND

Medical dictionary. 2011.

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  • pineal organ — A tiny organ in the cerebrum that produces melatonin. Also called pineal body or pineal gland …   English dictionary of cancer terms

  • pineal organ — noun see pineal gland …   New Collegiate Dictionary

  • pineal organ — noun see pineal body …   Useful english dictionary

  • pineal organ — the light sensitive dorsal evagination of the diencephalon part of the brain. See also epiphysial apparatus. This large and dark body lies to the right of the midline while its left side counterpart is the parapineal, not always present or… …   Dictionary of ichthyology

  • pineal body — noun a small endocrine gland in the brain; situated beneath the back part of the corpus callosum; secretes melatonin • Syn: ↑pineal gland, ↑epiphysis cerebri, ↑epiphysis • Hypernyms: ↑endocrine gland, ↑endocrine, ↑ductless gland * …   Useful english dictionary

  • pineal gland — noun Date: 1712 a small usually conical appendage of the brain of all craniate vertebrates that functions primarily as an endocrine organ and that in a few reptiles has the essential structure of an eye called also pineal, pineal body, pineal… …   New Collegiate Dictionary

  • Pineal gland — A small gland located deep within in the brain. It is believed to secrete melatonin, and may therefore be part of the body’s sleep regulation apparatus. * * * pineal gland n a small body that arises from the roof of the third ventricle and is… …   Medical dictionary

  • pineal body — A tiny organ in the cerebrum that produces melatonin. Also called pineal gland or pineal organ …   English dictionary of cancer terms

  • pineal gland — A tiny organ in the cerebrum that produces melatonin. Also called pineal body or pineal organ …   English dictionary of cancer terms

  • pineal eye — median, eye like structure on the top of the head in members of the Petromyzontidae, e.g., developing from the pineal organ …   Dictionary of ichthyology

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