character: Heart Anatomy
topic: The Structure and Function of the Heart
grade: 11
subject: Biology
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character: Electrical Conduction System
topic: How Electrical Signals Control Heartbeats
grade: 11
subject: Biology
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character: Arrhythmias
topic: Types and Causes of Heart Arrhythmias
grade: 11
subject: Biology
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character: Cardiac Cycle
topic: Understanding the Phases of the Cardiac Cycle
grade: 11
subject: Biology
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