What are the main arteries of the body? Illustrations and lists breakdown this major part of your circulatory system.

Some circulatory diseases, such as stroke and heart attacks, need emergency medical attention. Learn more about 11 circulatory diseases here.

The cardiovascular system, also known to some as the circulatory system, consists of the heart, blood vessels, and blood. Learn more about it here.

What happens when your circulatory system isn't working normally? Learn what diseases and disorders can develop and how to prevent them.