Wikibooks Contributors2018-09-302018-09-302006http://hdl.handle.net/20.500.12091/403The central nervous system includes the brain and spinal cord. The brain and spinal cord are protected by bony structures, membranes, and fluid. The brain is held in the cranial cavity of the skull and it consists of the cerebrum, cerebellum, and the brain stem. The nerves involved are cranial nerves and spinal nerves.en-USPhysiologyBook chapter