Rats. Ciarra Ramirez Rat dissection of the CNS May 16th Diagrams Rat Central Nervous system Human Nervous system. Parts • Cerebral cortex: Covers the out cerebral hemisphere. • Corpus Callosum: Connects the two cerebral nervous system. • Cerebellum: Back of brain , movement balance and posture. • Brain stem : Midbrain ponds and medulla. • Pons: Part of the Menecephalon • Medulla: Largest part of the brain stem and between the pons and the spinal cord. Work cited page. • • • • • rat! Rat. rat? rat , Cheyenne Copied my background , after all we all know she’s not creative. Just really muscular.