The tunica externa, the tunica media, and the tunica intima.
Which Blood Vessels Have Thin Leaky Walls. Arteries thickest wall veins thinnest wall. The blood vessels are the components of the circulatory system that transport blood throughout the human body.
The Circulatory system Complete from image.slidesharecdn.com
In total, blood is made up of four main components: The arteries are elastic, muscular tubes that carry the blood from the left ventricle of the heart to the capillaries. These layers surround the lumen, the hollow interior through which vein walls are thinner and less elastic than artery walls.
The vessels make up two closed systems of tubes that this makes the walls of veins thinner than those of arteries, which is related to the fact that blood in the veins has less pressure than in the arteries.
Webmd explains how these drugs can save your life. Blood vessels are an integral component of the circulatory system. These vessels transport blood cells, nutrients, and oxygen to the tissues of the body. In our body there are also millions of small blood vessels called capillaries.