The right ventricle pumps the blood to the lungs, where the blood releases waste gases and picks up oxygen. The newly oxygen-rich blood (shown in red) returns to the heart and enters the left atrium.

The right ventricle pumps the blood to the lungs, where the blood releases waste gases and picks up oxygen. The newly oxygen-rich blood (shown in red) returns to the heart and enters the left atrium.

Best vitamins for heart health - and the causes of heart disease explained - We consulted the experts to bust myths ...

This clip is an introduction to the human heart ... as a really powerful pump. The heart takes in blood low in oxygen from the body. It pumps it through the right side of the heart and on to ...

As your heart expands, blood flows from your body into its chambers. First the atria, then the ventricles. The left ventricle has to ... heart's starting to get blood right now.

Snakes are used in various investigations of the effects of their venom on human ... The snake heart is composed of three basic chambers: the right and left atria and a single ventricle.

Several coronary arteries deliver blood and oxygen to the human heart: The two main arteries are on the front of the heart, on the right and left sides. To supply oxygenated blood to the back of ...