The left ventricle pumps the oxygen-rich blood to all parts of the body. Do right and left seem backward? That's because you're looking at an illustration of somebody else's heart. To think about ...

The human body comes in lots of different shapes and sizes but most are made up of the same parts which do the same ... Your ribs keep your heart, lung and stomach safe. And your skull acts ...

The human body comes in lots of different shapes and sizes but most are made up of the same parts which do the same ... Your ribs keep your heart, lung and stomach safe. And your skull acts ...

grow skin and other body parts in the laboratory, and even propagate whole, living organs, including the human heart. Click on the body at left to learn more about these decidedly 21st-century ...