Watch a watermelon wrapped in rubber bands explode in slow-motion. (CBS News) Have you ever wondered if you could cause a watermelon to explode by wrapping a ton of rubber bands around it? And have you additionally wondered what that explosion would end up looking like in super slow-motion? The answer to both questions is probably not, but it's very cool to watch happen anyways.
Four valves control the flow of blood from the atria to the ventricles and from the ventricles into the two large arteries connected to the heart. 1  The tricuspid (tri-CUSS-pid) valve is in the right side of the heart, between the right atrium and the right ventricle.
This chamber expands to hold the blood. When there is enough blood, the tricuspid (try-CUSS-pid) heart valve allows the blood to flow into the right ventricle (the bottom part of the right side of the heart). The right ventricle pumps the blood to the lungs. The blood needs to return to the lungs to pick up oxygen.