- pineal apparatus
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1. a median outgrowth of the roof of the diencephalon in vertebrates that in some develops into the pineal eye and in others into the pineal gland.2. See parietal eye.
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Universalium. 2010.
pineal apparatus
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pineal apparatus — 1. a median outgrowth of the roof of the diencephalon in vertebrates that in some develops into the pineal eye and in others into the pineal gland. 2. See parietal eye … Useful english dictionary
pineal eye — an eyelike structure that develops from the pineal apparatus in certain cold blooded vertebrates. Also called third eye. [1885 90] * * * … Universalium
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 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
epiphysial apparatus — consists of two median dorsal projections from the diencephalon an anterior parietal body and a posterior pineal body or epiphysis. These bodies are light sensitive and influence the melanophores and the behavior of the animal … Dictionary of ichthyology
parietal eye — noun : pineal eye * * * Zool. a median outgrowth of the diencephalon anterior to the pineal apparatus, having visual adaptations in many anamniotes and lizards. [1885 90] … Useful english dictionary
parietal eye — Zool. a median outgrowth of the diencephalon anterior to the pineal apparatus, having visual adaptations in many anamniotes and lizards. [1885 90] * * * … Universalium
endocrine system, human — ▪ anatomy Introduction group of ductless glands (gland) that regulate body processes by secreting chemical substances called hormones (hormone). Hormones act on nearby tissues or are carried in the bloodstream to act on specific target organs… … Universalium
Descartes: metaphysics and the philosophy of mind — John Cottingham THE CARTESIAN PROJECT Descartes is rightly regarded as one of the inaugurators of the modern age, and there is no doubt that his thought profoundly altered the course of Western philosophy. In no area has this influence been more… … History of philosophy
death — /deth/, n. 1. the act of dying; the end of life; the total and permanent cessation of all the vital functions of an organism. Cf. brain death. 2. an instance of this: a death in the family; letters published after his death. 3. the state of being … Universalium
