Peripheral nervous system

A nerve is an enclosed, cable-like bundle of nerve fibers (called axons). Nerves have historically been considered the basic units of the peripheral nervous system. A nerve provides a common pathway for the electrochemical nerve impulses called action potentials that are transmitted along each of the axons to peripheral organs or, in the case of sensory nerves, from the periphery back to the central nervous system. Each axon is an extension of an individual neuron, along with other supportive cells such as some Schwann cells that coat the axons in myelin.

part of the nervous system

nerve that carries signals between the spinal chord and the body

part of the peripheral nervous system

cluster of neurons in a dorsal root of a spinal nerve

axonal projections that exit a particular region

cluster of nerves in a similar location

one of two "roots" which emerge from the spinal cord

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efferent motor root of a spinal nerve

part of the visceral nervous system

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nerve fiber