Medically reviewed by Jeffrey S. Lander, MD Heart sounds are the noises made as blood moves through the heart with each ...

The heart is a large muscular organ which pumps blood to the lungs and then the rest of your body. It has four chambers. Humans have a double circulatory system, which means the blood passes ...

The heart pumps blood around the body and has four chambers. The atria are at the top, and the ventricles are at the bottom. Typically, electrical signals travel from the atria to the ventricles ...

The ancient Greek philosopher and polymath Aristotle once concluded that the human heart is tri-chambered and that it was the single most important organ in the entire body, governing motion, ...