Development of the nervous system in humans optical vesicle (which will eventually become the optic nerve, retina and iris) forms at the basal plate of the prosencephalon. In the fifth week, the alar plate of the prosencephalon expands to form the cerebral hemispheres (the telencephalon). The basal plate becomes the diencephalon. The diencephalon, mesencephalon and rhombencephalon constitute the brain stem of the embryo. It continues to flex at the mesencephalon. The rhombencephalon folds posteriorly, which causes its alar plate to flare and form the fourth ventricle of the brain. The pons and the cerebellum form in the upper part of the rhombencephalon, whilst the medulla oblongata forms
Where the Boys Are annual spring break. "Where the Boys Are" was one of the first teen films to explore adolescent sexuality and the changing sexual morals and attitudes among American college youth. It won Laurel awards for Best Comedy of the Year and Best Comedy Actress (Paula Prentiss). The main focus of "Where the Boys Are" is the "coming of age" of four girl students at a midwestern university during spring vacation. Merritt Andrews (Dolores Hart), the smart and assertive leader of the quartet, expresses the opinion in class that premarital sex might be something young women should experience. Her speech eventually inspires