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5 Cards in this Set
- Front
- Back
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Sinoatrial (SA) node depolarizes
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First
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electrical activity goes rapidly to AV node via internodal pathways
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Second
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depolarization spreads more slowly across atria with conduction slowing through AV node
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Third
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depolarization moves rapidly through ventricular conducting system (the AV bundles and Right and Left bundles) to the apex of the heart
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Fourth
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depolarization wave spreads upward from the apex through the purkinje fibers
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Fifth
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