Chapter_21[1 answer - Chapter 21 The Cardiovascular System...

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Chapter 21- The Cardiovascular System: Blood Vessels and Hemodynamics Choose the single best answer to each question. 1) Which of the following is correct? A) Arteries carry blood away from the heart. B) Elastic arteries have larger diameters than muscular arteries. C) Muscular arteries branch into arterioles. D) A and B are correct. E) A, B and C are correct. 2) The sites of exchange between the blood and the tissues are the 3) The blood supply of the larger blood vessels is called the 4) The blood vessels that drain blood directly from the capillary beds are the 5) Which part of the arterial wall contains smooth muscle? A) tunica intima B) tunica media C) tunica externa D) A and B are correct. E) A, B and C are correct. 6) Which of the following does NOT cause vasodilation?
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7) All of the following are elastic arteries EXCEPT the: 8) Muscular arteries 9) Which blood vessels play a key role in regulating blood distribution and pressure because their diameters may be easily and rapidly adjusted? A) elastic arteries B) conducting arteries C) arterioles D) capillaries E) venules 10) Capillaries 11) Sinusoids
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12) Venules
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