Either a arteriole on the artery side or a venule on the vein side of the bed.
Capillaries, having diameters between about 0.0005 to about 0.008 inches, are the smallest blood vessels.
afferent
Oxygenated blood
Arterial blood
natural
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
veins
The arteries, but to be exact, the aorta.
In the body, capillary tubes are in fact microscopic. However, the capillary effect can be viewed on a much larger scale. If one was to place a straw in a glass of water, one would see that the water level in the straw is higher than that of the glass of water, this is because the molecules of water are attracted to the wall of the straw, and each other.
metarterioles when resistance is low
Capillaries are the smallest of all blood vessels.
red blood cells
there is not a certain kind of vessel; all the vessels stretch.
The only blood vessels that contain valves are veins.
Platelets form to help control the blood loss.