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Cards In This Set
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What is the innermost tunica of a blood vessel?
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Tunica intima
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What is the tunica intima made of and why?
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Endothelium forms a smooth friction reducing lining
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What space does all three tunics of the blood vessels surround?
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Lumen
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What layer of the blood vessels consist of smooth muscle cells and sheets of elastin?
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Tunica media
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What tunca layer anchors the blood vessels to its surrounding structures and protects the blood vessels?
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Tunica adventita
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What blood vessel is exposed to the highest pressure of any blood vessels?
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Arteries
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What blood vessels has the thickest tunica media and why?
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Arteries because of the high blood pressure which allows vessel to constrict and dilate
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What are the smallest blood vessels?
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Capillaries
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What vessel links the arteries and veins in the pathway of blood?
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Capillaries
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What is the layer that makes up the capillary wall?
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Tunica intima-because the exchange of materials between blood and intersital fluid
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What vessels are fartherest from the heart and therefore las the least pressure?
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Veins
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Why do veins have thinner walls than arteries but a larger lumen?
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Veins have larger lumens to allow a large volume of blood.
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What is the heaviest wall layer in veins?
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Tunica adventitia (externa)
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What is the correct pathway of blood? There are six parts.
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Heart
elastic arteries
muscular arteries
arterioles
capillaries
venules
veins
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Which vessel experiences the widest variation in pressure of any vessel type?
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Aorta- closest to the heart
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