Most veins in the body, called systemic veins, carry blood toward the heart. The portal vein and its contributing veins are ...

All blood vessels are specifically structured to perform their function. For example, a capillary is microscopically thin to allow gases to exchange, the arteries are tough and flexible to cope ...

Thompson is removing a healthy vein from Raymond's leg so it will be ready for Raymond's quadruple bypass operation. In order to get blood to the heart muscle of a by-pass patient more efficiently ...

When it comes to understanding the human blood circulation system, one fascinating aspect is the lung was ist tonerin capillaries. These veins play an ...