The nervous system is divided into two major divisions, central nervous system (CNS) and peripheral nervous system, Central nervous system (CNS), Receives and processes information, Peripheral nervous system (PNS), sends signals between the CNS and the rest of the body, Part of the central nervous system (CNS), brain and spinal cord, Autonomic Nervous System has two divisions, parasympathetic and sympathetic nervous systems, parasympathetic division, rest and digest, sympathetic division, fight or flight, preganglionic neurons, Nerves carrying impulses exiting the spinal cord, postganglionic neurons, Nerves waiting to receive impulses, acetylcholine (ACh), postsynaptic neurotransmitter of the parasympathetic nervous system, cholinergic nerves, Nerves releasing acetylcholine ACh

Nervous system

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