Stephen6239 Stephen6239

21-05-2018
Biology

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What is the sympathetic nervous system and what are some of the effects it has on the body?

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emilykimmonsorhmw0 emilykimmonsorhmw0

24-05-2018

Heart rate is controlled by the two branches of the autonomic (involuntary) nervous system. The sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS). The sympathetic nervous system (SNS) releases the hormones (catecholamines - epinephrine and norepinephrine) to accelerate the heart rate.

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