Circulatory System in the Best of the Web Directory

Circulatory System

Cardiovascular System

Features an animated explanation of the pulmonary circuit.

How Stuff Works: Circulatory System Channel

Features articles and presentations on the circulatory system, blood flow, blood types, cholesterol and hemoglobin, among other related topics.

Nova Online: Cut To The Heart

Provides information on the history of heart surgery as well as details of what causes heart failure, animated diagrams and photographs of diseased hearts.

Your Gross and Cool Body: Circulatory System

Offers a brief overview for younger children, telling what the cardiovascular system is and how the blood obtains oxygen.

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