Determine the impact if the connection between the sinoatrial (SA) node and the atrioventricular (AV) node becomes blocked.
A) The ventricular rhythm will not change.
B) The ventricles will beat faster.
C) The ventricles will beat more slowly.
D) The atria will contract more forcefully.

Question

Quizplus · Accepted Answer

If the connection between the SA node and the AV node is blocked, the ventricles will beat more slowly because the AV node will take over as the pacemaker, which has a slower intrinsic rate than the SA node.

Determine the Impact If the Connection Between the Sinoatrial (SA)