Which of the following is different from other in absence of muscular coat?

Question

Which of the following is different from other in absence of muscular coat? (A) Arterioles (B) Capillaries (C) Arteries (D) Veins

Tardigrade Admin · Accepted Answer

Blood capillaries which are site for gaseous exchange through diffusion, does not have muscular coating while veins, arteries and anterioles have.

Q. Which of the following is different from other in absence of muscular coat?