Cardiac Conduction System
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Last updated 1:16 AM on 3/30/26
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5 Terms
1
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What is the SA node?
Primary pacemaker of the heart
2
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What is the AV node’s role?
Delays signal before ventricles contract
3
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What is the Bundle of His?
Pathway conducting signal down septum
4
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What do Purkinje fibers do?
Spread impulse through ventricles
5
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Why is AV delay important?
Allows ventricles to fill before contraction
