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juin [17]
3 years ago
8

Parasympathetic and sympathetic refer to the two branches of the

Biology
1 answer:
skad [1K]3 years ago
3 0
Parasympathetic and Sympathetic refers to two branches of the Autonomic Nervous System (ANS).

<span>The Parasympathetic Nervous System (PNS) has a general function of controlling bodily functions such as homeostasis and the body's response during rest.
</span>
<span>The Sympathetic Nervous System (SNS) on the other hand refers to the body's response to perceived danger.
</span>
Each of these result in different bodily responses.  In the case of the PNS these include: a decreased heart rate, bronchial tube constriction, relaxation of muscles and the constriction of th pupils.  When it comes to the SNS, these responses include: increased cardiovascular contraction (leading to an increased heart rate), dilation of the bronchial tubes, contraction of muscles and dilation of the pupils/ 

  
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