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rhinencephalon
rhi·nen·ceph·a·lon R0219800 (rī′nĕn-sĕf′ə-lŏn′, -lən)n. pl. rhi·nen·ceph·a·la (-lə) The olfactory region of the brain, located in the cerebrum.
rhi′nen·ce·phal′ic (-sə-făl′ĭk) adj.rhinencephalon (ˌraɪnɛnˈsɛfəˌlɒn) n, pl -lons or -la (-lə) (Anatomy) anatomy the parts of the brain, in both cerebal hemispheres, that in the early stages of evolution were concerned with the sense of smell. It includes the olefactory bulb and tract and the regions of the limbic system[C19: from rhino- + encephalon] rhinencephalic adjrhi•nen•ceph•a•lon (ˌraɪ nɛnˈsɛf əˌlɒn, -lən)
n., pl. -lons, -la (-lə). the part of the cerebrum containing the olfactory structures. [1840–50] rhi`nen•ce•phal′ic (-səˈfæl ɪk) rhi`nen•ceph′a•lous, adj. Thesaurus| Noun | 1. | rhinencephalon - a center in the cerebral hemispheres that governs the sense of smell in lower animals; in humans it seems to mediate complex emotional behaviorolfactory brainnerve center, nerve centre, center, centre - a cluster of nerve cells governing a specific bodily process; "in most people the speech center is in the left hemisphere"piriform area, piriform lobe, pyriform area, pyriform lobe - pear-shaped neural structure on either side of the brain in the rhinencephalonolfactory bulb - one of two enlargements at the terminus of the olfactory nerve at the base of the brain just above the nasal cavities |
rhinencephalon
rhinencephalon[¦rīn·in′sef·ə‚län] (anatomy) The anterior olfactory portion of the vertebrate brain. rhinencephalon
rhinencephalon [ri″nen-sef´ah-lon] 1. the part of the brain once thought to be concerned entirely with olfactory mechanisms, including olfactory nerves, bulbs, tracts, and subsequent connections (all olfactory in function) and the limbic system (not primarily olfactory in function); homologous with olfactory portions of the brain in certain other animals.2. the area of the brain consisting of the substantia perforata rostralis, bandaletta diagonalis (Broca), area subcallosa, and gyrus paraterminalis.3. one of the parts of the embryonic telencephalon.rhi·nen·ceph·a·lon (rī'nen-sef'ă-lon), A largely archaic, and now rarely used, term denoting the parts of the cerebral hemisphere directly related to the sense of smell: the olfactory bulb, olfactory peduncle (together still listed as the first cranial nerve or olfactory nerve even though they form part of the central nervous system), olfactory tubercle, and olfactory or piriform cortex including the cortical nucleus of the amygdala. The term originally also encompassed the hippocampus, the entire amygdala, and the fornicate gyrus, all of which are no longer believed to be specifically related to the sense of smell.
See also: limbic system. Synonym(s): smell-brain [rhin- + G. enkephalos, brain] rhinencephalon (rī′nĕn-sĕf′ə-lŏn′, -lən)n. pl. rhinencepha·la (-lə) The olfactory region of the brain, located in the cerebrum.
rhi′nen·ce·phal′ic (-sə-făl′ĭk) adj.rhi·nen·ceph·a·lon (rīn'en-sef'ă-lon) Collective term denoting the parts of the cerebral hemisphere directly related to the sense of smell: the olfactory bulb, olfactory peduncle, olfactory tubercle, and olfactory or piriform cortex including the cortical nucleus of the amygdala.
See also: limbic system[rhin- + G. enkephalos, brain]rhinencephalon The part of the brain concerned with smell.rhinencephalon
Related to rhinencephalon: diencephalonSynonyms for rhinencephalonnoun a center in the cerebral hemispheres that governs the sense of smell in lower animalsSynonymsRelated Words- nerve center
- nerve centre
- center
- centre
- piriform area
- piriform lobe
- pyriform area
- pyriform lobe
- olfactory bulb
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