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Additional
Autonomic Nervous System
English Wikipedia - The Free Encyclopedia
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Autonomic nervous system
The
autonomic nervous system
(ANS) is a division of the
peripheral nervous system
that influences the function of
internal organs
. The autonomic nervous system is a control system that acts largely unconsciously and regulates bodily functions such as the
heart rate
,
digestion
,
respiratory rate
,
pupillary response
,
urination
, and
sexual arousal
. This system is the primary mechanism in control of the
fight-or-flight response
and the freeze-and-dissociate response.
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