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ch21 - Exam Name MULTIPLE CHOICE. Choose the one...

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ExamName___________________________________MULTIPLE CHOICE.Choose the one alternative that best completes the statement or answers the question.1)The muscular layer in the wall of a blood vessel is the tunica1)A)media.B)adventitia.C)intima.D)externa.E)interna.
2)Compared to arteries, veins2)
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3)Capillaries that have a complete lining are called3)
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4)The smallest arterial branches are called the4)
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5)The layer between the tunica media and the tunica externa in a large artery is the5)A)external elastic membrane.B)tunica externa.C)internal elastic membrane.D)tunica media.E)tunica intima.
6)The thoroughfare channel ends at the6)
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7)Which of the following layers of a vessel contains collagen fibers with scattered bands of elasticfibers?7)
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8)After blood leaves the capillaries, it enters the8)
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9)Which layer of a blood vessel contains concentric sheets of smooth muscle tissue?9)A)external elastic membraneB)tunica mediaC)internal elastic membraneD)tunica intimaE)tunica externa
10)The large vessels that return blood to the heart are called10)
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11)In arteries, the thick layer of elastic fibers associated with the tunica intima is called the11)
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12)Which of the following is the innermost layer of a blood vessel?12)
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13)Venoconstriction ________ the amount of blood within the venous system, which ________ thevolume in the arterial and capillary systems.13)A)increases; reducesB)reduces; reducesC)doubles; decreasesD)decreases; doublesE)reduces; increases
14)Venous valves are responsible for14)
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