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Blood vessels and a.
Anatomy
Term | Definition |
---|---|
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. |