Indicate the effects of sympathetic and parasympathetic stimulation on the heart using the following answer code:
-increases the heart rate
A)an effect caused by sympathetic stimulation
B)an effect caused by parasympathetic stimulation
C)not brought about by either sympathetic or parasympathetic stimulation

Question

Quizplus · Accepted Answer

Sympathetic stimulation increases heart rate by releasing the hormone adrenaline, causing the heart to beat faster and with more force.

Answer: B
 Parasympathetic stimulation decreases heart rate by slowing down the sinoatrial node, which is responsible for initiating the heartbeat.

Indicate the Effects of Sympathetic and Parasympathetic Stimulation on the Heart