ˌpalæocereˈbellum Anat.
Also (chiefly U.S.) paleo-.
[mod.L., f. palæo-, paleo- b + cerebellum.]
A phylogenetically older portion of the cerebellum, comprising mainly the anterior lobe, pyramid, and uvula.
| 1925, 1954 [see neocerebellum]. 1974 Encycl. Brit. Macropædia XII. 990/2 The anterior lobe of the cerebellum represents the paleocerebellum, an area that regulates equilibrium and muscle tone; it constitutes the main mass of the cerebellum in fish, reptiles, and birds. |
So ˌpalæocereˈbellar a., of or pertaining to the palæocerebellum.
| 1936 C. U. A. Kappers et al. Compar. Anat. Nervous Syst. Vertebr. I. vii. 777 The above mentioned group of authors has separated the cerebellum into a neocerebellar portion and a paleocerebellar portion. 1958 L. Hausman Clin. Neuroanat. xxii. 203 (heading) Syndrome of paleocerebellar atrophy. |