Which of the following structures are able to spontaneous generate an action potential?
A) the sinoatrial node (SA Node)
B) the atrioventricular node (AV Node)
C) the atrioventricular bundle
D) the right and left bundle branches
E) All of the items can spontaneously generate an action potential.

Question

Quizplus · Accepted Answer

All of the listed structures are part of the cardiac conduction system and have the ability to spontaneously generate action potentials, with the sinoatrial node being the primary pacemaker of the heart.

Which of the Following Structures Are Able to Spontaneous Generate