This document provides a summary of the history and development of medicine. It discusses ancient practices and key figures like Hippocrates and Galen who established medicine as a science. Major developments include Vesalius' anatomical studies in the 15th century, Harvey's discovery of blood circulation in the 17th century, advances in microbiology by Pasteur and Lister in the 19th century, and the establishment of modern medical specialties. The document then provides an overview of the circulatory system, describing the heart, pulmonary and systemic circulation, and the role of arteries, veins and capillaries in transporting blood throughout the body.