MICROANATOMY

Detailed explanation-1: -Arteries have thicker wall as compared to arteriole and veins.

Detailed explanation-2: -Step by step answer:The left ventricle has the thickest walls since it is the major siphoning office of the heart. The oxygenated blood enters the left chamber, goes through the bicuspid valve and into the left ventricle. The blood leaves the left ventricle through the aortic semilunar valve and enters the aorta.

Detailed explanation-3: -Since the blood pumped from the heart into the arteries flows at higher pressure than the blood in veins, hence arteries need to have thicker walls or else the high blood pressure might cause them to burst.

Detailed explanation-4: -The largest artery in our human body is Aorta. It brings oxygenated blood from the ventricle to the whole body.

Detailed explanation-5: -Arteries have thick walls because they need to withstand high pressure generated by the heart. Veins have thin walls because they do not need to withstand as much pressure. Arteries are also narrower than veins, which allows for faster blood flow.