Great saphenous vs. profunda femoral vein blood flow, what is this?

Different vessels: The vein system in your legs is divided into two systems: deep and superficial. The deep vein system travels within the muscle compartment of your leg. The profunda femoral vein is a deep vein. The superficial vein system flows closer to the skin surface-above the muscles. The great saphenous vein is superficial. The superficial system flows into the deep system, which flows up into the body.