18. The Heart
Electrical Conduction System of the Heart
Multiple Choice
Multiple ChoiceThe role of the atrioventricular node (AV node) is to __________.
A
initiate a sinus rhythm
B
slow down impulses so that the atria can contract to fill the adjacent ventricles with blood
C
initiate ventricular depolarization
D
conduct impulses to the sinoatrial node (SA node)
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