character: Heart Model
topic: Anatomy of the Human Heart
grade: 10
subject: Biology
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character: Circulatory System
topic: Blood Flow through the Heart
grade: 10
subject: Biology
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character: Cardiac Cycle
topic: Phases of Heart Activity
grade: 10
subject: Biology
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character: Heart Valves
topic: Function and Structure of Heart Valves
grade: 10
subject: Biology
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