1) which type of vessel has a greater compliance, arteries or veins? Why? 2) how does this relate...

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Medical Sciences

1)which type of vessel has a greater compliance, arteries or veins?Why?
2) how does this relate to the blood volum reservior of thebody?

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1 Veins have a much higher compliance than arteries largely due to their thinner walls Veins which are abnormally compliant can be associated with edema Pressure stockings are sometimes used to externally reduce compliance and thus keep blood from pooling in the legsVeins are more compliant than arteries and expand to accommodate changing volume Wikipedia However arteries have more elastic tissue and are under more pressure than veinsTake for example the aorta it has the most layers around 50 layers of elastin fibers in its tunica media which makes it the most elastic blood vessel in the body If the aorta is compressed or stretched it will recoil back to its normal shape Compliance of a vessel is the opposite of its elastanceTherefore veins can accommodate a large changes in blood volume with only a small change in pressure Contraction of smooth muscle in arteries reduces their compliance thereby decreasing arterial blood volume and increasing See Answer

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