PATHOLOGY

Detailed explanation-1: -. The arteries branch into smaller and smaller vessels, eventually becoming very small vessels called arterioles. Arteries and arterioles have muscular walls that can adjust their diameter to increase or decrease blood flow to a particular part of the body.

Detailed explanation-2: -Capillaries have very thin walls and they have no muscles, even though are formed by the branching of arterioles.

Detailed explanation-3: -A muscular artery (or distributing artery) is a medium-sized artery that draws blood from an elastic artery and branches into “resistance vessels” including small arteries and arterioles.