NEET PG DENTAL EXAM

Detailed explanation-1: -But unlike the arteries, the venous pressure is low. Veins are thin-walled and are less elastic. This feature permits the veins to hold a very high percentage of the blood in circulation.

Detailed explanation-2: -Arteries are most elastic and thicker than veins because the blood they receive from the heart enters them with great force and at a much higher pressure than veins so arteries need to be able to withstand the pressure exerted on them.

Detailed explanation-3: -Thick walls of arteries help them to resist the pressure of the flow of blood in them. Elastic walls of arteries: The elastic layer allows stretching and absorbs pressure. The walls stretch and recoil in response to pumping, thus peaks in pressure are absorbed.

Detailed explanation-4: -The walls of veins have the same three layers as the arteries. Although all the layers are present, there is less smooth muscle and connective tissue. 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.