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Cards In This Set
| Front | Back |
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What does the vascular system consist of?
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Capillaries
arteries veins |
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What do arteries do?
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Carry blood from the heart to the capillaries
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What does the cross-section of an artery show us?
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That the artery consists of three layers of tissues.
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What do the arteries do?
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Maintain normal blood pressure.
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Which layer enables arteries to constrict or dilate?
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The smooth muscle layer.
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What are smaller arteries called?
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Arterioles.
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What is arteriosclerosis?
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When arteries lose their elasticity.
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What is an aneurysm?
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When a weak portion of an arterial wall bulges out.
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What is atherosclerosis?
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When cholesterol plaques form in the walls of a coronary artery.
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What do veins do?
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Carry blood from capillaries back to the heart.
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Why do veins have valves?
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To prevent backflow of blood.
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Describe blood pressure in veins.
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It is very low.
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What can veins do extensively?
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Veins can constrict extensively.
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What are smaller veins called?
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Venules.
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Name the disorders of arteries.
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Arteriosclerosis.
Atherosclerosis. Aneurysm. |
