Sympathetic stimulation of the heart increases action potential conduction veloicity through the AV node.

Question

Quizplus · Accepted Answer

Sympathetic stimulation of the heart increases the activity of the AV node and enhances the conduction velocity through it, resulting in a faster heart rate. This is due to the effects of the sympathetic nervous system on ion channels, which increases the rate of depolarization and repolarization in the cardiac cells, leading to faster conduction of electrical signals.

Sympathetic Stimulation of the Heart Increases Action Potential Conduction Veloicity