Varicose Vein Formation: An Animation

Information from the video The veins within the legs have one-way valves which close when the muscles relax to prevent the backward flow of blood. When these valves malfunction because of vein walls becoming weakened, blood can pool in the veins and cause them to...

Anatomy of Your Veins

To understand the function of your vein anatomy, it’s important to understand how your cardiovascular system works. Inside your body, you have a massive network of blood vessels. They all begin with the pulmonary vein. The pulmonary vein handles moving oxygenated...

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