What does the parasympathetic nervous system do to the heart rate?
A) Lowers it
B) Increases it
C) Maintains it
D) Increases it first then lowers it after the emergency is gone

Name: What does the parasympathetic nervous system do to the heart rate? A) Lowers it B) Increases it C) Maintains it D) Increases it first then lowers it after the emergency is gone
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Question

Quizplus · Accepted Answer

The parasympathetic nervous system lowers the heart rate by releasing acetylcholine, which acts on the heart to decrease its rate of contraction.

What Does the Parasympathetic Nervous System Do to the Heart