NEET PG DENTAL EXAM

Detailed explanation-1: -Arteries and arterioles have relatively thick muscular walls because blood pressure in them is high and because they must adjust their diameter to maintain blood pressure and to control blood flow.

Detailed explanation-2: -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.

Detailed explanation-3: -An artery is a blood vessel that conducts blood away from the heart. All arteries have relatively thick walls that can withstand the high pressure of blood ejected from the heart.

Detailed explanation-4: -The thick walls of the arteries prevent them from bursting due to the high blood pressure and the changes in the pressure during the cardiac cycle. Hence, the thick walls are a structural necessity. The valves that are generally found in the veins are generally to prevent the backflow of the blood.