Why can't it just have a rest? Well, the blood has to be kept moving around all the time because it's the body's delivery system. Every possible part of the body has to be supplied with oxygen and ...

It’s all so confusing. -- J.W. ANSWER: I think of the venous system as streets going through a town. There is at least one main road (sometimes more than one) and lots of side streets.

Known as varicose veins, these blood vessels, which return blood from the legs to the heart, are actually a more superficial system. The real, working venous system for the legs lies deeper ...

It’s all so confusing. — J.W. Dear J.W.: I think of the venous system as streets going through a town. There is at least one main road (sometimes more than one) and lots of side streets.