PATHOLOGY

Detailed explanation-1: -The arteries are the thickest of all blood vessels and have muscular walls that contract to keep the blood moving away from the heart. The veins are not as muscular, but they contain valves to prevent the blood from flowing backward. The arteries are therefore widest blood vessels.

Detailed explanation-2: -Veins are generally larger in diameter, carry more blood volume and have thinner walls in proportion to their lumen. Arteries are smaller, have thicker walls in proportion to their lumen and carry blood under higher pressure than veins.

Detailed explanation-3: -arteries-these carry blood pumped away from the heart; they are the largest and strongest blood vessels.

Detailed explanation-4: -The largest artery in the body is Aorta that pumps oxygenated blood into the body.