The time it takes for electrical impulses to travel from the SA node to the AV node is the ____.
A) S-T segment
B) Q wave
C) R wave
D) P-R interval
E) Q-T interval

Question

Quizplus · Accepted Answer

The P-R interval on an electrocardiogram (ECG) represents the time it takes for electrical impulses to travel from the sinoatrial (SA) node through the atria, AV node, and into the ventricles. This interval includes the time for atrial depolarization and the delay in the AV node.

The Time It Takes for Electrical Impulses to Travel from the SA