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Regina Bailey

Regina's Biology Blog

By Regina Bailey, About.com Guide to Biology

Know Your Heart

Friday May 16, 2008
Image courtesy of MedValet
The heart is the organ that supplies blood and oxygen to all parts of the body.

It is about the size of a clenched fist, weighs about 10.5 ounces and is shaped like a cone.

Structures of the heart include atria, ventricles, valves, arteries, and veins.

Do you know which artery carries de-oxygenated blood from the heart to the lungs? Test your knowledge of heart anatomy.

Take the Heart Anatomy Quiz!

For more biology quizzes, visit:


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