PERIPHERALNERVOUSSYSTEM

Peripheral nervous system

The peripheral nervous system is the part of the nervous system consisting of the nerves and ganglia outside of the brain and spinal cord. The main function of the PNS is to connect the central nervous system to the limbs and organs, essentially serving as a communication relay going back and forth between the brain and the extremities. Unlike the CNS, the PNS is not protected by the bone of spine and skull, or by the blood–brain barrier, leaving it exposed to toxins and mechanical injuries. The peripheral nervous system is divided into the somatic nervous system and the autonomic nervous system; some textbooks also include sensory systems.

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peripheral nervous system

Noun

  1. The part of the nervous system which is not the central nervous system.


The above text is a snippet from Wiktionary: peripheral nervous system
and as such is available under the Creative Commons Attribution/Share-Alike License.

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