Question

1 multiple choice 10 points on an ecg, the pq interval indicates the time for a cardiac impulse to travel from the_________. av node to the atrial myocardium sa node to the purkinje fibers sa node to the atrial myocardium sa node through the av node

Explanation:

The PQ interval on an ECG represents the time it takes for the cardiac impulse to travel from the sino - atrial (SA) node through the atrioventricular (AV) node. The SA node is the heart's natural pacemaker. The impulse starts at the SA node and then passes through the AV node before reaching the ventricles. The PQ interval measures this conduction time through the AV node.

Answer:

SA node through the AV node