After a heart attack, it is normal to worry about doing too much physical activity. Learn how to safely get physical activity in your daily life as you continue to recover.
Your heart is a pump that is responsible for delivering blood to all parts of your body. Arteries carry oxygen-rich blood from the lungs to nourish the cells, and veins transport oxygen-poor blood on its way back to the heart and lungs. This animation shows how the heart and circulatory system work.
