Heart

Your heart is a muscular organ that acts like a pump to send blood throughout your body all the time.

Your heart is at the center of your circulatory system, which delivers blood to all areas of your body. An electrical system regulates the heart and uses electrical signals to contract the heart walls. When the walls contract, blood is pumped into your circulatory system.

Your blood carries the oxygen and nutrients that your organs need to function normally. Blood also carries carbon dioxide, a waste product, to your lungs to be passed out of your body and into the air. A healthy heart supplies the areas of your body with the right amount of blood at the right rate needed to function normally. If disease or injury weakens your heart, your body organs wont receive enough blood to function normally.