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

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