Stimulation of the parasympathetic nervous system increases the firing rate of the SA node while stimulation of the sympathetic nervous system decreases it.

Question

Quizplus · Accepted Answer

Stimulation of the parasympathetic nervous system decreases the firing rate of the SA node, leading to a slower heart rate, while stimulation of the sympathetic nervous system increases it, leading to a faster heart rate.

Stimulation of the Parasympathetic Nervous System Increases the Firing Rate