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Blood vessels and a.


Arteries The the vessel that leaves the heart.Takes the blood cell to organs or tissues in the body.
Arteriole When the artery continues to get smaller an smaller.
Capillary When the arteriole continues to get smaller and smaller.
Capillary Beds This is where the exchange of oxygen and carbon dioxide take place. Pre-capillary sphincter valves at the beginning of each capillary that regulate blood flow into the capilary.
Venules The blood vessels increase in size.
Veins When the venules increase in size. This returns blood to the heart.
Tunica adventia The outer layer of the artery. This is made of elastic fibers and connective tissue and gives the artery strength and shape.
Tunica Media Consists of a multi unit smooth muscle and elastic tissue. This is the middle layer of the artery.
Tunica intimae Layer of endothelium and i very smooth to prevent clotting.
Created by: amterry