These investigations allowed Vesalius to refute aspects of Galen 's anatomy .
In the middle of the 16th century , the anatomist Andreas Vesalius challenged the anatomical knowledge of Galen by conducting dissections on human cadavers .
These investigations allowed Andreas Vesalius to refute aspects of Galen 's anatomy .
In the middle of the 16th century , the anatomist Andreas Vesalius challenged the anatomical knowledge of Galen by conducting dissections on human cadavers .