paleocerebellum


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Related to paleocerebellum: neocerebellum, Archicerebellum

paleocerebellum

 [pa″le-o-ser″ĕ-bel´um]
originally, the phylogenetically older parts of the cerebellum; the term is now applied specifically to those parts whose afferent inflow is predominantly supplied by spinocerebellar fibers. adj., adj paleocerebel´lar.

pa·le·o·cer·e·bel·lum

(pā'lē-ō-ser'ĕ-bel'ŭm), [TA]
Phylogenetic term referring to the portion of the cerebellum including most of the vermis and the adjacent zones of the cerebellar hemispheres rostral to the primary fissure; paleocerebellum is equated with the anterior lobe and corresponds to the zone of distribution of the spinocerebellar tracts and is sometimes called spinocerebellum; in phylogenetic age, it is thought to be intermediate between the archicerebellum [TA] and the neocerebellum [TA].
Synonym(s): spinocerebellum [TA]
[paleo- + L. cerebellum]

paleocerebellum

/pa·leo·cer·e·bel·lum/ (pa″le-o-ser″ĕ-bel´um) the phylogenetically second oldest part of the cerebellum, namely the vermis of the anterior lobe and the pyramis, uvula, and paraflocculus of the posterior lobe. Because this corresponds roughly to the primary site of termination of the major spinocerebellar afferents, the term is sometimes equated with spinocerebellum. . Spelled also palaeocerebellum .paleocerebel´lar

paleocerebellum

[pal′ē·ōser′əbel′əm]
the phylogenetically oldest part of the cerebellum, including the vermis, which connects the cerebellar hemispheres, and the flocculus, or lobule, on the posterior lobe. Also called spinocerebellum.

pa·le·o·cer·e·bel·lum

(pā'lē-ō-ser'ĕ-bel'ŭm) [TA]
The portion of the cerebellum including most of the vermis and the adjacent zones of the cerebellar hemispheres rostral to the primary fissure, corresponding to the zone of distribution of the spinocerebellar tracts; in phylogenetic age, it is thought to be intermediate between the archicerebellum and the neocerebellum.
Synonym(s): spinocerebellum [TA] .
[paleo- + L. cerebellum]

paleocerebellum

originally, the phylogenetically older parts of the cerebellum; the term is now applied specifically to those parts whose afferent inflow is predominantly supplied by spinocerebellar fibers.