Why do veins in our legs go bad?
Veins return the used blood back to the heart. When the venous blood gets to the heart, it gets pumped through the lungs so carbon dioxide can be released and oxygen can be picked up. So why do veins go…
Veins return the used blood back to the heart. When the venous blood gets to the heart, it gets pumped through the lungs so carbon dioxide can be released and oxygen can be picked up. So why do veins go…
The calf muscle is often considered the second heart because it plays a role within the circulatory system that is similar to the heart. One pump of the heart exerts enough power to send blood throughout the body, reaching the…