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CHAPTER 19 PART 1

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alexamartin's version from 2017-10-23 14:44

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Question Answer
1. Which of the following is in logical order? A) Heart arteries  arterioles  capillaries  venules  veins  heart B) Lungs arteries  arterioles  capillaries  venules  veins  lungs C) Heart arteries  arterioles  capillaries  venules  veins  lungs d) Lungs arteries  arterioles  capillaries  venules  veins  HeartA
2. Capillary walls consist of a __________. A) Tunica intima B) Tunica media C) Tunica externa D) All of the theseA
3. All of the following would be found in large arteries except _______. A) elastic tissue B) smooth muscle C) endothelium D) valvesD
4. The aorta is classified as a(n) ________. A) Arteriole (resistance) artery B) Elastic (conducting) artery C) Muscular (distributing) artery D) None of theseB
5. These vessels carry blood toward the heart. A) Arterioles B) Capillaries C) Arterie D) VenulesD
6. Of the following, what is the best definition of veins? A) Carry oxygenated blood B) Carry blood away from the heart C) Carry deoxygenated blood D) Carry blood toward the heartD
7. Of the following blood vessel components, which is the most critical in regulating systemic blood pressure? A) Tunica intima B) Tunica media C) Tunica externa D) Venous valvesB
8. An increasing lumen diameter is termed _________, and occurs when smooth muscle _________. A) vasodilation, relaxes B) vasodilation, contracts C) vasoconstriction, relaxes D) vasoconstriction, contractsA
10. True or false: Vascular shunts of capillaries are examples of arteriovenous anastomoses.TRUE
11. Of the following cardiovascular components, which contains the majority of the body's blood volume at any one time? A) Pulmonary capillaries B) Heart C) Systemic veins and venules D) Systemic capillariesC
12. Some of the least permeable capillaries are found in the ________, while some of the most permeable capillaries are found in the ________. A) kidney; brain B) Intestine; muscles C) bone marrow; brain D) brain; bone marrowD
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