Map of the Human Heart Let's get straight to the heart of the matter—the heart's job is to move blood. Day and night, the muscles of your heart contract and relax to pump blood throughout your body.

Learn about the anatomy of the heart and how its chambers, valves, and vessels work together to maintain effective blood circulation throughout the body to sustain life.

New computer models that track the motions of blood flow in the heart may reduce the risk of stroke, according to researchers at Johns Hopkins Medicine. Using specialized CT scans, a team of ...