Ck 12: Life Science: Central Nervous System

[Free Registration/Login may be required to access all resource tools.] The central nervous system (CNS) is the largest part of the nervous system. It includes the brain and the spinal cord. The bony skull protects the brain. The spinal cord is protected within the bones of the spine, which are called vertebrae. Learn more about the central nervous system in this learning module produced by CK-12.