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10 Cards in this Set
- Front
- Back
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cappilaries
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connect smallest arteries to veins
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average length of blood vessels
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60,000 miles
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lumin
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space in artery hole or vein
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arteries have
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thich walls and smaller lumins
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veins have
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thin walls and large lumins
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3 layers of vessel wall
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tunica interna
tunica media tunica externa |
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tunica interna
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smooth inner layer that repels blood cells and platelets
-simple squamousendothelium overlying a basement membrane and layer of fibrous tissue *this layer touches blood* |
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Tunica Media
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middle layer
- usually thickest, smooth muscle, collogen, some elastic -smooth muscle for vasomotion |
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tunica externa
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outermost layer
-loose connective tissue with vasa vasorum |
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vaso vasorum
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supply blood to the smooth muscle in arteries
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