Anatomy of the cerebellum major part of the cerebellum by mass, but in other vertebrates, it is typically the spinocerebellum. In amphibians, lampreys, and hagfish the cerebellum is little developed; in the latter two groups it is barely distinguishable from the brain-stem. Although the spinocerebellum is present in these groups, the primary structures are small paired nuclei corresponding to the vestibulocerebellum. The cerebellum follows the general groups-of-three pattern found in anatomy, with three major input and output cerebellar peduncles (fiber bundles). These are the superior (brachium conjunctivum), middle (brachium pontis), and inferior (restiform and juxtarestiform bodies) cerebellar peduncles. There are three sources of input
Where the Boys Are to head the cast." Natalie Wood, who had just made "All the Fine Young Cannibals" for MGM, was mentioned as a possible star at one stage. MGM eventually persuaded the book's author to change the title from "Unholy Spring" to "Where the Boys Are". Henry Levin was signed to direct. The first two stars confirmed for the movie were George Hamilton and Yvette Mimieux. Paula Prentiss was cast despite never having made a movie before. Connie Francis also made her movie debut. The novel contained a section where the students help raise money to ship arms to Fidel Castro for