Which labeled structure in the figure represents the only potential pathway for conducting action potentials from the atria to the ventricles?

Question

Quizplus · Accepted Answer

The structure labeled C represents the only potential pathway for conducting action potentials from the atria to the ventricles, which is the atrioventricular (AV) node. The AV node is located at the bottom of the right atrium and acts as the electrical gateway between the atria and ventricles.

Which Labeled Structure in the Figure Represents the Only Potential