Artery and Veins are two different types of blood vessels in the circulatory system and are mainly involved in circulating blood throughout the body. One of the major differences between arteries and veins is that the arteries carry oxygenated blood to all body parts, whereas veins carry the deoxygenated blood to the hearth with the exception of pulmonary arteries and veins. The Artery-Vein diagram is created in EdrawMax and it mainly shows the main features of both Artery and Veins, i.e., the fibrous coat, endothelium, lumen, and elastic fibers. The endothelium is a single layer of squamous endothelial cells that line the interior surface of blood vessels and lymphatic vessels. Whereas, Lumen is the inside space of the artery or intestine.