ABSTRACT
The anatomy and physiology of the nervous system is complex, but an understanding is critical to clinical neurology. The nervous system is frequently divided for ease of understanding into the central nervous system, the peripheral nervous system, and the autonomic nervous system. The hypothalamus functions in association with the autonomic nervous system and the endocrine system. The axons from these cerebellar nuclei are virtually the sole conduit of impulses out of the cerebellum to the remainder of the nervous system. The cerebellum is connected to the rest of the brain by pairs of rostral, middle, and caudal cerebellar peduncles; all impulses into or out of the cerebellum must pass through a cerebellar peduncle. The growth of a brain tumor or brain edema can result in such crowding of the cerebrum or cerebellum that these structures herniate beneath the falx cerebri or tentorium cerebelli.
