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. When blood returns ...

The circulatory system consists of one heart, five liters of blood, and approximately 96,000 kilometers of blood vessels, responsible for transporting nutrients and waste throughout the body.

Most people have right-dominant hearts—which to a doctor or a researcher means they have an artery that extends from the ...

Ebstein's Anomaly is a serious congenital heart defect that, if not treated, can result in heart failure. It involves malfunctioning valves in your heart that don't seal properly, allowing blood ...

The agency OK’d an artificial vessel to restore blood flow in patients, even though its own scientists flagged questionable study results and potentially fatal ruptures of the product.

Your heart is an exquisitely engineered pump made almost entirely of muscle. And you can see the extraordinary engineering in action if we slow your heart to a single beat. Inside the cavernous ...

Scientists at Queen Mary University of London and Barts Health have developed an innovative tool that simulates blood flow in the aorta, helping heart surgeons plan surgeries more precisely. The ...

Originally appeared on the NOVA Web site Cut to the 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 ...