If the sinoatrial node fails in the heart,
A) the heart ceases to beat.
B) the ventricles will beat at a higher rate.
C) an artificial pacemaker can correct the problem.
D) the heartbeat is unaffected.
E) the atria will not contract.

Question

Quizplus · Accepted Answer

When the sinoatrial (SA) node fails, the heart's natural pacemaker is compromised, leading to potential heart rhythm problems. An artificial pacemaker can be used to correct these issues by taking over the role of initiating the heart's rhythm, thus ensuring the heart continues to beat effectively.

If the Sinoatrial Node Fails in the Heart