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24 Cards in this Set
- Front
- Back
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How can you distinguish between an artery and a vein? |
Arteries have much thicker tunica media due to being under greater pressure |
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Layers of the blood vessel wall |
1. Tunica externa 2. Tunica media 3. Tunica interna |
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Tunica externa |
Aka Tunica adventitia Outer layer of the blood vessel Made of connective tissue with collagen fibers |
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Tunica media |
Middle layer of the blood vessel Made of smooth muscle |
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Tunica interna |
Aka tunica intima Inner layer of the blood vessel Made of simple squamous epithelium with elastic fibers |
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Vasoconstriction |
Smooth muscle contraction leading to a decrease in the diameter of the blood vessel |
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Vasodilation |
Smooth muscle contraction leading to a decrease in the diameter of the blood vessel |
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Peripheral resistance |
Resistance of blood vessels to blood flow |
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Atherosclerosis |
Fatty deposits which accumulate in the tunics interna of the arteries |
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CAD |
Coronary artery disease Caused by atherosclerosis of the coronary arteries |
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What division of the autonomic nervous system controls the diameter of the systemic arterioles? |
Sympathetic nervous system |
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Vein with valve |
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Artherosclerosis |
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Artery |
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Vein |
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Tunica externa |
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Smooth muscle |
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Tunica interna |
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An artery |
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Artherosclerosis |
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Lumen of artery |
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Tunica interna |
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Tunic media |
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Tunica externa |
