Vesalius work proved that a number of accepted ideas abput the human body were wrong. who had been the accepted authority on the human body until vesalius reversed his ideas

Vesalius work superseded that of the Greek anatamist Galen. Galen's work, which had been produced at the height of the Roman Empire, was based mostly on dissections of monkeys, though he was also a physician who treated human subjects. Vesalius improved on this by dissecting human subjects.