The only blood vessels that contain valves are veins.
capillaries
Capillary
Yes, the capillaries are the smallest kind of blood vessel, that facilitate the movement of substances (like oxygen and glucose) in and out of the blood through their very thin walls.
veins
The arteries, but to be exact, the aorta.
Capillaries are the smallest of all blood vessels.
red blood cells
there is not a certain kind of vessel; all the vessels stretch.
Platelets form to help control the blood loss.
Arteries (carries oxygenated blood), veins (carries deoxygenated blood) and capillaries (blood vessels connecting arteries to veins and vice versa).
red blood cell (:
The "type" of blood vessel is an artery.The largest, an elastic one connected to the heart, is the aorta.