During the Vagal Stimulation Experiment, the Resumption of the Heart

Question

During the vagal stimulation experiment, the resumption of the heart beat is called .
A) sympathetic surge
B) vagal escape
C) vagal suppression
D) autonomic recovery

Accepted Answer

Vagal escape refers to the phenomenon where, after a period of slowed heart rate due to vagal nerve stimulation, the heart gradually resumes its normal rhythm. This occurs as the heart's intrinsic pacemaker cells (in the sinoatrial node) and other parts of the autonomic nervous system compensate for the prolonged vagal stimulation, allowing the heart rate to recover.