A cardiovascular nurse is orienting a new nurse to the unit.The new nurse questions the steps of the normal cardiac conduction system.The senior nurse explains that action potentials in the myocardium follow which sequence?
A) Sinoatrial (SA) node, internodal pathway, atrioventricular (AV) node, bundle of His, and Purkinje fibers
B) Purkinje fibers, bundle of His, atrioventricular (AV) node, internodal pathway, and sinoatrial (SA) node
C) Atrioventricular (AV) node, sinoatrial (SA) node, bundle of His, and internodal pathway.
D) Internodal pathway, sinoatrial (SA) node, atrioventricular (AV) node, and Purkinje fibers.
Correct Answer:
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