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The top documents tagged [lungs pump]
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The Cardiovascular System. Amazing Heart Facts Your heart is about the same size as your fist. An average adult body contains about five quarts of blood
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The Heart. What is the Human Heart? It is an electro-mechanical muscular pump receiving blood from all parts of the body and pumps blood back to them
226 views
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The Human Body It Destroys the Theory of Evolution
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