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Which is the correct hierarchy? 1) ANS, sympathetic, PNS 2) PNS, sympathetic, ANS 3) Sympathetic, ANS, PNS
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4 votes
Which is the correct hierarchy?

1) ANS, sympathetic, PNS
2) PNS, sympathetic, ANS
3) Sympathetic, ANS, PNS

User ZXX
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1 Answer

4 votes
The autonomic nervous system is divided into three parts: the sympathetic nervous system, the parasympathetic nervous system and the enteric nervous system. The autonomic nervous system controls smooth muscle of the viscera (internal organs) and glands.
User Coda
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