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It was thought before that blood came from food in your liver, then entered the heart where it was heated before it shot out into the veins, not the arteries.

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It provoked immediate controversy and hostility from the medical community of the time, contradicting as it did the usually unquestioned teachings of Galen.

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Harvey's great contribution to medicine was his revolutionary discovery of the circulation of blood.

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Born April 1st, 1578 in Folkstone, England

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He showed that arteries and veins forms a complete circuit

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William Harvey First person to correctly describe blood circulation in he body

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Harrison Hoff, Kam Smith, Jack Nichols, Josh Mrozek