archaeocerebellum

ar·chi·cer·e·bel·lum

(ar'ki-ser'ĕ-bel'ŭm), [TA]
The small, phylogenetically oldest portion of the cerebellum, sometimes called the vestibulocerebellum because its afferents arise primarily from the vestibular ganglion and nuclei; in mammals, it is represented by four subdivisions of the cerebellum: nodulus, uvula vermis, flocculus, and lingula of cerebellum.
Synonym(s): archaeocerebellum
[archi- + L. cerebellum]

archaeocerebellum

/ar·chaeo·cer·e·bel·lum/ (ahr″ke-o-ser″ah-bel´um) archicerebellum.
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