paleocerebellum

[ pā′lē-ō-sĕr′ə-bĕləm ]

n.

The phylogenetically old part of the cerebellum that includes most of the vermis as well as the adjacent medial zone of the cerebellar hemispheres rostral to the primary fissure.spinocerebellum

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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.