NEET PG DENTAL EXAM

Detailed explanation-1: -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-2: -Arteries are always under high pressure. To accommodate this stress, they have an abundance of elastic tissue and less smooth muscle. The presence of elastin in the large blood vessels enables these vessels to increase in size and alter their diameter.

Detailed explanation-3: -Arteries have thick, elastic and muscular walls. Arteries are the first vessels that the heart pumps blood through, they experience the highest blood pressure, so they have thick elastic walls to withstand the high pressures. Veins have thin and non-elastic walls.

Detailed explanation-4: -Arteries have thick elastic walls and veins have valves.