The peripheral nervous system (PNS) is primarily divided into two main divisions: the somatic nervous system and the autonomic nervous system. The somatic nervous system controls voluntary movements and conveys sensory information to the central nervous system, while the autonomic nervous system regulates involuntary bodily functions and is further subdivided into the sympathetic and parasympathetic nervous systems. Additionally, the enteric nervous system is sometimes considered a third division, managing gastrointestinal functions.
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