Which of the following correctly lists the sequence of structures that a cardiac action potential follows in order to excite normal contraction of the heart?

Question

Quizplus · Accepted Answer

The correct sequence of structures that a cardiac action potential follows is SA node, AV node, Bundle of His, Purkinje fibers. This is the normal conduction pathway of the heart, starting with the pacemaker cells of the SA node, passing through the AV node to delay the impulse briefly, then traveling rapidly down the Bundle of His and Purkinje fibers to simultaneously depolarize the ventricular myocardium and produce normal contraction of the heart.

Which of the Following Correctly Lists the Sequence of Structures