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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. |