| Term | Definition |
|---|
| Pulmonary circulation | Carries blood from the right ventricle of the heart to the lungs and back to the left atrium of the heart-transport unoxygenated blood to the lungs |
| Systemic circulation | The largest circulation; it provides the blood supply to the rest of the body; carries oxygen and other nutrients to the cells and picks up carbon dioxide and other waste |
| Artery | Thick wall with three layers;tunica intima,tunica media,tunica adventitia; Called conductance vessels because they carry blood from the heart to the arterioles |
| Arteriole | Thinner than the wall of an artery but with three layers mostly smooth muscle; Called resistance vessels because the contraction and relaxation of the musssscle change vessel diameter, which alters resistance to blood flow |
| Capillary | Layer of endothelium; Called exchange vessels because nutrient, gases and wastes exchange between the blood and interstitial fluid |
| Venule | TDhin wall with less smooth muscle and elastic tissue than an arteriole; Venules and veins collect and return blood from the tissues to the heart. They are called capacitance vessels because they hold or store blood(most of the blood is located in the venous side of the circulation |
| Vein | Three layers; intima, media, and adventitia, but thinner and less elastic than an artery; veins contain valves |
Combine with other sets
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