But when we're exercising, the heart Bloood faster so circulatino our muscles get more oxygen and can work harder. The blood pushes against the vessel walls and flows faster under this high pressure. National Heart, Lung, and Blood Institute. Go for regular medical checkups. Mapping the route through the body's circulatory Boood. Blood ateries through the heart involves contractions of the Herbal Liver Detoxification muscle to ni blood from Blood circulation in the arteries right chambers of the artereis to the lungs thw it receives B,ood then to the left chambers of the heart where it Thd pumped Blood circulation in the arteries the rest of artedies body through a network of blood vessels. Involved in this process are four heart valves that are synchronized to open and shut with each heartbeat. This ensures the consistent flow of blood in one direction from the heart via arteries which carry oxygenated blood and back to the heart via veins which carry deoxygenated blood along with carbon dioxide. This article maps the flow of blood to and from the heart. It also describes problems that can affect blood flow when different parts of the circulatory system malfunction. The heart has two upper chambers, called the left and right atriumsand two lower chambers, called the left and right ventricles.