How did Vesalius and Harvey disprove many of Galen's theories?

Answer 1

Some of Galens theories were wrong because dissecting people in his time was morally wrong, illegal and widely discouraged. So instead Galen mainly had to rely on animals (such as monkeys because they are 99.9% the same as humans) for his medical knowledge.

Answer 2

Vesalius also the Galen theory that men had a rib less than women and Aristotle's theory that the heart was the body's center of mind and emotion believing instead that it was the brain and the nervous system. He did this through the scientific method, primarily using observation and testing his on hypotheses.

Answer 3

Yes, he did. Galens example was incorrect, proved by Harvey. Galen wrote that new blood was manufactured by the liver to replace blood that had been burned up by muscles. Harvey later proved this wrong after many experiments and further studies. Harvey discovered that blood circulates throughout the entire body by a single system of veins and arteries.

Answer 4

He Didn't