character: Arterial Andy
topic: Types of Blood Vessels
grade: 6
subject: Health Education
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character: Vein Vanessa
topic: Venous System
grade: 6
subject: Health Education
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character: Capillary Carl
topic: Capillary Functions
grade: 6
subject: Health Education
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character: Heart Helen
topic: Circulatory System Overview
grade: 6
subject: Health Education
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