Human brain basal ganglia, and related structures. The diencephalon gives rise to the thalamus and hypothalamus. The hindbrain also splits into two areas – the metencephalon and the myelencephalon. The metencephalon gives rise to the cerebellum and pons. The myelencephalon gives rise to the medulla oblongata. Also during the fifth week, the brain divides into repeating segments called neuromeres. These are known as rhombomeres seen in the hindbrain. A characteristic of the brain is gyrification (wrinkling of the cortex). In the womb, the cortex starts off as smooth but starts to form fissures that begin to mark out the different lobes of
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