Aortic stenosis means that your child has a heart valve that is too narrow or is blocked. The aortic valve is 1 of 4 heart valves that keep blood flowing through the heart. The valves make sure blood ...
Varicose veins are a common health issue that develops when atypical or damaged valves in the veins allow blood to flow in the wrong direction or to pool. They usually develop on the legs ...
Blood flows through the heart and around the body in one direction. The four heart valves – pulmonary and tricuspid on the right, and aortic and mitral on the left of the heart – control the ...