Heart, Structure, Function, Diagram, Anatomy, & Facts

Heart, organ that serves as a pump to circulate the blood. It may be as simple as a straight tube, as in spiders and annelid worms, or as complex as the four-chambered double pump that is the center of the circulatory system in humans, other mammals, and birds. Learn more about the heart in this article.

Human Heart - Anatomy, Functions and Facts about Heart

Structure and function of heart

Human heart: Anatomy, function & facts

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parts of the heart and their functions –

Heart, Structure, Function, Diagram, Anatomy, & Facts

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Human Circulatory System - Diagram - How It Works

How your heart works – Heart and circulatory system – British Heart Foundation - BHF

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Circulatory system: Structure, function, parts, diseases

Heart, Structure, Function, Diagram, Anatomy, & Facts