None Essay

1063 WordsJan 2, 20135 Pages
Chapter 32: Cardiovascular System Directions: Select the best possible answer for each of the following. 1. What would cause you to believe that someone has a heart murmur? A. an irregular ECG B. irregular heart sounds instead of sharp lub-dub sounds C. irregular heart beats D. low blood pressure 2. Which of these white blood cells are phagocytic? A. lymphocytes B. neutrophils C. macrophages D. both neutrophils and macrophages E. both lymphocytes and macrophages 3. The Greek root words for "heart" and "vessels" underlies the term A. arteriole. B. atrioventricular. C. cardiovascular. D. diastole. E. thromboembolism. 4. What would you find in the heart of a human? A. one atrium and one ventricle B. two atria and one ventricle C. one atrium and two ventricles D. two atria and two ventricles E. two atria and a partially divided ventricle 5. "Artery" and "vein" are defined by whether they leave or enter the heart. If they were defined by whether they carried oxygenated or deoxygenated blood, we would have to change the name(s) of A. the hepatic portal vein to a hepatic portal artery. B. the hepatic and renal systems; they would have to be switched. C. the pulmonary artery and vein; they would have to be switched. D. the coronary artery and vein; they would have to be switched. E. none, since the aorta and vena cava do not have "artery" and "vein" in their name. 6. The Greek root word for "contraction" underlies the term A. arteriole. B. systole. C. cardiovascular. D. diastole. E. thromboembolism. 7. A heart murmur is a distortion of the heartbeat due to blood flowing back through a valve that should be closed. If the heart sound is lub-dub-ssshhh, the most likely cause is a failure of the A. atrioventricular valves. B. semilunar valves. C. mitral (bicuspid) valve. D. AV node to signal contraction. E. sinoatrial

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