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William Harvey once stated that "I profess to learn and teach anatomy not from books but from dissections, not from the tenets for philosophers, but from the fabric of nature." When it came to discovering how things worked, William Harvey cut right to the heart of the matter. How blood circulates is a mystery that was solved by an English physician William Harvey, in the seventeenth century. The question that plagued him was, what was the exact role of veins in the human body?

Until this time, it was believed that the liver produced the body’s blood supply and that it pumped the blood through the body too. Harvey decided to study the flow of blood by operating on live animals. For twelve years, he conducted his experiments before members of the Royal College of Physicians in London, England. Finally, in a series of brilliant experiments on animals and humans, Harvey demonstrated how blood circulates in the body. He proved that by writing a book called An Anatomical Study of the Motion of the Heart and of the Blood in Animals which explained how blood was pumped from the heart throughout the body, then returned to the heart and recirculated. He also showed that the valves in the veins allowed blood to flow only in the direction of the heart. Together, these discoveries proved Harvey’s claim that blood moves in a circle in the body right.

This discovery is regarded as the single greatest achievement of all times. It also established the principle of doing experiments in medicine to learn how the body’s organs and tissues function.

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Comment by Tasneem Moyyadi on November 24, 2011 at 2:13pm
good research on an interesting experiment!!!:D
Comment by Amatullah Najmi on November 15, 2011 at 7:44am

I know i chose this experiment because i believe that the complexity of the heart and its function are quite fascinating!

Comment by Alefiyah Kinana on November 15, 2011 at 7:30am

wow!! very informative about how blood circulates throughout the body....
im not really intobiology but this piece of yours is really interesting!!


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