| Term | Definition |
|---|
| Arteries | carry oxygenated blood away from heart - One Exception Pulmonary Artery carries de-oxygenated blood away from the heart |
| Arterioles | smaller branches of arteries, still caring oxygenated blood away from the heart |
| Capillaries | single cell thick most numerous of the blood vessels. This is where gas and nutrient exchange happen |
| Venules | smaller vessels, similar to veins carry blood toward the heart -de-oxygenated blood |
| Veins | veins have valves - valves prevent back flow - veins carry de-oxygenated blood toward the heat - Except pulmonary vein carries oxygenated blood toward the heart |
| Wall of blood vessels | Tunica Intima, Tunica Media, Tunica Externa |
| Tunica Interma | Inner most layer, Simple Squamous Epithelium |
| Tunica Media | Smooth Muscle layer - thickest layer |
| Tunica Externa | (Adventitia) Outer most Layer, connective tissue, elastic and collagenous fibers |
Combine with other sets
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