Increased parasympathetic stimulation of the heart via the vagus nerve causes a decrease in heart rate.

Question

Quizplus · Accepted Answer

This is because the parasympathetic nervous system is responsible for promoting rest and relaxation in the body, and a slower heart rate is a sign of decreased activity and a more relaxed state. The vagus nerve is a key component of the parasympathetic nervous system and plays a major role in regulating heart rate.

Increased Parasympathetic Stimulation of the Heart Via the Vagus Nerve