If the connection between the vagus nerve and the heart is cut, which of these changes will occur?
A) heart will beat slower
B) stroke volume will decrease
C) cardiac output will decrease
D) nodal fibers will depolarize more slowly
E) none of the above

Question

Quizplus · Accepted Answer

The vagus nerve primarily acts to slow down the heart rate. If the connection is cut, the heart will beat faster, not slower, and other parameters like stroke volume and cardiac output are not directly decreased by cutting the vagus nerve.

If the Connection Between the Vagus Nerve and the Heart