Harvey was also one to disagree with Galen's texts because according to Galen, blood is formed in the liver and is absorbed by the body and flows through the dividing wall of the heart. However, to counter this, Harvey examined the heartbeat and discovered the existence of the pulmonary vein. As a result, it led him to discover that blood only flowed in one direction. William Harvey was then given the title “father of modern physiology”. The studies and observations made by Harvey were one of the most important contributions to the medical field. Harvey's discovery of blood circulation gave impetus to the study and knowledge of human anatomy and physiology