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peripheral nervous system
peripheral nervous system The peripheral nervous system is the part of the nervous system outside the brain and spinal cord.
The peripheral nervous system is the part of the nervous system outside the brain and spinal cord. It includes somatic and autonomic divisions; the autonomic division includes enteric, parasympathetic, and sympathetic parts, and the somatic division includes the cranial and spinal nerves, their ganglia, and peripheral sensory receptors.