The arteries, but to be exact, the aorta.
veins
there is not a certain kind of vessel; all the vessels stretch.
The arteries, but to be exact, the aorta.
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.
Capillaries are the smallest of all blood vessels.
red blood cells
There is no such thing as "height blood pressure".
The only blood vessels that contain valves are veins.
Platelets form to help control the blood loss.
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