IBHRE CCDS Practice Questions - IBHRE Certified Cardiac Device Specialist (CCDS) Exam

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Which structure normally serves as the heart's dominant pacemaker, generating the impulse that initiates each sinus beat?

Atrioventricular (AV) node Sinoatrial (SA) node Bundle of His Purkinje fibers

Correct Answer:

Sinoatrial (SA) node

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