In vertebrates, the nervous system consists of the central nervous system (CNS), which includes the brain and spinal cord, and the peripheral nervous system (PNS), which consists of nerves that connect the CNS to every other part of the body.
Ring vertebrata, sistem saraf kawangun saking sistem saraf pusat (SSP), sané ngaranjing otak miwah sumsum tulang belakang, miwah sistem saraf tepi (PNS), sané ngranjing taler saraf pinaka pengubung SSP nuju soang-soang genah ring angga tiosan.