Atherosclerosis occurs when fat, cholesterol, etc build up in the walls of arteries and form plaques.
Do Arteries Have Thin Walls. Arteries have more smooth muscle in their walls than veins to accommodate the pulses of blood generated by each contraction of the heart. 12:05 lecturio medical 8 845 просмотров.
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The vasa vasorum is a network of small blood vessels that supply the walls of large blood vessels, such as elastic arteries (e.g., the aorta) and large veins (e.g., the venae cavae). A smooth muscle is capable of spontaneous contraction and can contract in two ways. The best example is the aorta (an artery) which pumps blood around the whole veins need not pump blood at a high pressure cuz it usually carries blood to the heart.thus, the arteries have a thick elastic and muscle fibre layer.
Thus arteriole walls are much thinner than those of arteries.
The name derives from latin 'the vessels of the vessels'. thick outer walls thick layers of muscle and elastic fibres. Veins are the blood vessels that have thin walls and contain valves. Atherosclerosis occurs when fat, cholesterol, etc build up in the walls of arteries and form plaques.
