FRANCE — Did you know that, long before anyone else, Leonardo da Vinci called into question Galen's description of how the heart works? This is just one of the many interesting tidbits featured in ...

The heart is a complex organ that pumps blood throughout the body. It sits in the chest, slightly left of center, behind the breastbone, and between the lungs. A heart that is not healthy does not ...

Your circulatory system works all day, every day, to pump oxygen throughout your body. There are cardiovascular conditions that can impact this system. Your circulatory system, also known as your ...

The cardiovascular system consists of the heart, blood vessels, and blood. Its primary function is to transport nutrients and oxygen-rich blood to all parts of the body and to carry deoxygenated blood ...