Your heart is responsible for delivering blood to all parts of your body. It supplies oxygen and other nutrients where needed.
© 2000-2026 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
Related Articles
Read article
Heart Health
Understanding Heart Valves
The heart contains 4 valves. The valves open and close to keep blood moving in the right direction through the heart. With each squeeze, the valves open and close to keep blood moving forward.
Read article
Heart Health
Anatomy and Function of the Heart Valves
Detailed anatomical description of the heart valves, including simple definitions and a labeled, full-color illustration.
Read article
Heart Health
About the Heart and Blood Vessels
Detailed anatomical description of the heart's blood vessels, including simple definitions and a labeled, full-color illustration.
