Major division of the CNs ◆ Brain Central Telencephalon nervous system Diencephalon Cerebellum Brain stem 1-Midbrain 2-Pons Peripheral nervous 3-medulla oblongata 3 system ◆ Spinal cord Medine sagittal sectionMajor Division of the CNS Brain Telencephalon Diencephalon Cerebellum Brain stem 1-Midbrain 2-Pons 3-medulla oblongata Spinal cord 1 2 3 Medine sagittal section