Answer:
Arteries:
Arteries have thick layer of elastic fibers. The lumen is narrow in the arteries. The semilunar valves are absent and the outer wall is thick. They are inserted deep to the body surface.
Capillaries:
Capillaries do not have any elastic fibers. The lumen is very small. The semilunar valve are not present and the outer wall is one cell layer thick. They are present inside all the tissues.
Vein:
Vein has thin layer of elastic fibers. The lumen is wide in the veins. The semilunar valves is present and outer wall is thin. They are present near the body surface.
