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5 Cards in this Set
- Front
- Back
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Types of vessel |
Artery Arterioles Capillaries Venules Veins |
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Vessel walls |
Outside to in: Tunica externa Tunica media Tunica intima Endothelium Lumen |
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Endothelium |
- smooth lining of vessels - single layer of squamous epithelial cells - reduces friction - blood cells not damaged |
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Tunica media |
- elastic fibres - stretch to accommodate increased blood pressure - recoil, maintaining blood pressure - smooth muscle - contraction regulates blood flow |
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Tunica externa |
- collagen fibres - resist overstretching the vessel wall |
