Find over 200 print-friendly fact sheets about heart disease and related health topics.
healthy veins, the blood flows in one direction. The valves of the vein allow
blood flow in the right direction and prevent blood from flowing in the wrong
direction. This keeps blood cells from collecting in the vein and forming a
blood clot (called a thrombus).
June 28, 2011
Adam Husney, MD - Family Medicine & Howard Schaff, MD - Diagnostic Radiology
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