Arteries carry oxygen-rich blood away from the heart to all of the body's tissues. They branch several times, becoming smaller and smaller as they carry blood further from the heart and into organs.

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.

T he heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is always at work. It pumps blood through arteries to deliver oxygen to organs and ...

Blood is oxygenated in the lungs after it is pumped out of the right ventricle. As oxygenated blood travels back to the heart, it enters the left atrium via the pulmonary veins. In the left ventricle, ...

It illustrates blood flow dynamics through the heart's chambers, including the right atrium, right ventricle, and pulmonary arteries, as well as the return of oxygenated blood from the lungs to ...

Oxygen-rich blood re-enters the heart through the left atrium, which is the upper left chamber. It then flows through the mitral valve to the left ventricle, or the left pumping chamber.

Heart valves allow blood to flow one way and prevent it from flowing in the wrong direction. The tricuspid valve controls blood flow between the right atrium and right ventricle.

Causes of cyanotic congenital heart disease As blood flows through the lungs and heart, blood that is poorly oxygenated, or low in oxygen, returns to the heart’s right side. It is blue in color.

Your heart is an essential organ in your body. It functions as a muscle that pumps blood nonstop and sends oxygen and nutrients to other organs.

Our heart, along with the brain, is the most important organ in the body. Essentially a muscle, the heart acts like a pump, circulating blood throughout the body. The heart works non stop to keep us ...