Your circulatory or cardiovascular system serves a vital function by delivering oxygen and nutrients to all the organs and tissues of your body. Learn more about how the circulatory system works ...

The circulatory system includes the many blood vessels circulating throughout the body. It includes veins, arteries, capillaries, venules, and arterioles. The lymphatic system is also part of the ...

Your circulatory system is made up of three parts: the heart, blood vessels and the blood itself. Your heart keeps all the blood in your circulatory system flowing.

This system is comprised of a heart that acts as a pump and approximately 70,000 miles of blood vessels, evenly split between arteries (which carry blood from the heart to all body parts) and ...

As the heart beats, it pumps blood through a system of blood vessels, called the circulatory system. The vessels are elastic, muscular tubes that carry blood to every part of the body.

Your body's circulatory system is a wondrous thing. It's made up of blood vessels that carry blood to and from your heart and also pumps blood to your lungs so you can breathe. It helps grow and ...