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BookmarkThe parasympathetic nervous system is one of three divisions of the autonomic nervous system.
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Sometimes called the rest and digest system, the parasympathetic system conserves energy as it slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles in the gastrointestinal tract..
For more information about the topic Parasympathetic nervous system, read the full article at Wikipedia.org, or see the following related articles:
Sympathetic nervous system — The sympathetic nervous system (SNS) is part of the autonomic nervous system (ANS), which also includes the parasympathetic nervous system (PNS). The ... > read more
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Spinal cord — The spinal cord is a part of the vertebrate nervous system that is enclosed in and protected by the vertebral column (it passes through the spinal ... > read moreNote: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Parasympathetic nervous system at Wikipedia.org. See the Wikipedia copyright page for more details.
