What happens to the heart rate if the parasym | vedclass

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(C) The parasympathetic nervous system,specifically through the vagus nerve,releases acetylcholine which acts on the $SA$ node to decrease the heart r

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It increases

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(C) The parasympathetic nervous system,specifically through the vagus nerve,releases acetylcholine which acts on the $SA$ node to decrease the heart rate.When the parasympathetic nerve is cut,the inhibitory effect of the vagus nerve on the heart is removed.As a result,the sympathetic nervous system's influence becomes dominant,leading to an increase in the heart rate.

What happens to the heart rate if the parasympathetic nerve of a rabbit is cut?

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