The function of the sympathetic nervous syste | vedclass

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(B) The sympathetic nervous system is part of the autonomic nervous system that prepares the body for 'fight or flight' responses.It releases neurotra

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Increase heart rate

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(B) The sympathetic nervous system is part of the autonomic nervous system that prepares the body for 'fight or flight' responses.It releases neurotransmitters like norepinephrine which act on the sinoatrial $(SA)$ node of the heart.This stimulation leads to an increase in the heart rate and the force of ventricular contraction to ensure adequate blood supply to tissues during stress.Conversely,the parasympathetic nervous system decreases the heart rate.

The function of the sympathetic nervous system is to

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