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: -Answer and Explanation: Arteries have a thicker wall of smooth muscles than veins because they have to circulate blood to all tissues of the body that they receive from the heart. So there is more pressure in the arteries created by systolic pressure.

Detailed explanation-3: -Blood vessels can be identified from histological slides or images according to the thickness of their walls: Arteries have thick walls composed of three distinct layers (tunica) Veins have thin walls but typically have wider lumen (lumen size may vary depending on specific artery or vein)