Question

what nerve control heart action?and what is the action of each?
what is the answer






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Answer 1

Explanation:

The sympathetic nervous system releases norpinephrine (NE) while the parasympathetic nervous system releases acetylcholine (ach) .

Sympathetic simulation increases heart rate and myocardial contractility

Answer 2

Answer:

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