Impulses from the sympathetic division of the autonomic nervous system (ANS) speed up heart rate while impulses from the parasympathetic division of the ANS slow down heart rate.

Question

Quizplus · Accepted Answer

The sympathetic division of the autonomic nervous system is responsible for the "fight or flight" response, which includes speeding up the heart rate, while the parasympathetic division is responsible for "rest and digest" functions, including slowing down the heart rate.

Impulses from the Sympathetic Division of the Autonomic Nervous System