Which of the following statements is true?
A) Stimulation by the vagus nerve slows the heart rate.
B) Stimulation by the cardiac nerve slows the heart rate.
C) Parasympathetic stimulation occurs through the cardiac nerve.
D) Both B and C are true.

Question

Quizplus · Accepted Answer

Stimulation by the vagus nerve, a part of the parasympathetic nervous system, slows the heart rate. The cardiac nerve is a sympathetic nerve that can increase the heart rate. Therefore, statement B is false. While the parasympathetic nervous system does play a role in regulating the heart rate, it does not occur through the cardiac nerve. Therefore, statement C is also false.

Which of the Following Statements Is True