Paleoencephalon

In the anatomy of animals, paleoencephalon refers to most regions in the brain that are not part of the neocortex or neoencephalon.

The paleoencephalon is the phylogenetically oldest part of the animal brain. Paleoenchepheal areas of older species are larger in proportion to overall brain volume as compared to those of mammals.


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  • paleoencephalon — /pay lee oh en sef euh lon /; esp. Brit. /pal ee /, n., pl. paleoencephala / leuh/. paleencephalon. * * * …   Universalium

  • paleoencephalon — noun The most ancient part of the brain …   Wiktionary

  • paleoencephalon — n. forebrain, primitive part of the brain, part of the brain that developed earliest during evolution …   English contemporary dictionary

  • paleoencephalon — pa·leo·encephalon …   English syllables

  • paleoencephalon — noun the more primitive parts of the brain phylogenetically; most structures other than the cerebral cortex • Syn: ↑paleencephalon, ↑palaeencephalon • Hypernyms: ↑neural structure * * * | ̷ ̷ ̷ ̷ ̷ ̷+ noun : paleencephalon …   Useful english dictionary

  • paleencephalon — noun the more primitive parts of the brain phylogenetically; most structures other than the cerebral cortex • Syn: ↑paleoencephalon, ↑palaeencephalon • Hypernyms: ↑neural structure * * * |pālē, |palē+ noun Etymology …   Useful english dictionary

  • paleencephalon — n. The more primitive parts of the brain phylogenetically; it includes most structures other than the cerebral cortex. Syn: paleoencephalon, palaeoencephalon. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • paleencephalon — /pay lee en sef euh lon /; esp. Brit. /pal ee /, n., pl. paleencephala / leuh/. (no longer in technical use) the more primitive part of the brain in the evolutionary development of animals, including all parts except the cerebral cortex and its… …   Universalium

  • neural structure — noun a structure that is part of the nervous system • Hypernyms: ↑structure, ↑anatomical structure, ↑complex body part, ↑bodily structure, ↑body structure • Hyponyms: ↑mamillary body, ↑ …   Useful english dictionary

  • palaeencephalon — noun the more primitive parts of the brain phylogenetically; most structures other than the cerebral cortex • Syn: ↑paleencephalon, ↑paleoencephalon • Hypernyms: ↑neural structure …   Useful english dictionary


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