Exam 3 Fall 2004

Exam 3 Fall 2004 - Examination III VPHY 3100 Elements of...

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Examination III VPHY 3100 Elements of Physiology November 8, 2004 1:25 - 2:15 p.m. Multiple Choice (2.5 points each) CHOOSE THE BEST ANSWER 1. Functions of the circulatory system include all of the following except A. temperature regulation. B. homeostasis. C. *digestion of nutrients. D. gas transport. 2. The most abundant plasma protein is A. alpha globulin. B. beta globulin. C. fibrinogen. D. *albumin. 3. When magakaryocytes turn into fragments, they become: A. *platelets. B. erythrocytes. C. basophils. D. monocytes. 4. Thromboplastin can be found in the: A. blood. B. *peri-vascular area. C. endothelium. D. smooth muscle layer of the blood vessels. 5. Which of the following substances is NOT soluble in the blood plasma? A. *Fibrin. B. Thrombin. C. Clotting factor X. D. Clotting factor XII. 6. Clotting is blocked by : A. calcium. B. vitamin K agonists. C. heparin antagonists. D. *coumarin agonists. 1
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7. Which of the flowing statements about blood circulation in physiological condition is TURE? A. The blood volume pumped per minute by the left ventricle is greater than that of the right ventricle. B. The blood volume pumped per minute by the left ventricle is less than that of the right ventricle. C. *The blood volume pumped per minute by the left ventricle is the same as that of the right ventricle. D. The blood volume pumped per minute by the left ventricle is either greater or less than that of the right ventricle. 8. Which of the following statements about the cardiac cycle is NOT correct? A. Both atrial and ventricular relaxation take longer time than the contraction. B. The right and left atria contract almost simultaneously, followed by contraction of the right and left ventricles 0.1 to 0.2 second later. C. *Contraction of atria accounts for ~1/3 of EDV. D. Stroke volume is ~2/3 of EDV. 9. During the cardiac cycle, the closure of AV valves occurs during the phase of: A. isovolumetric relaxation. B. *isovolumetric contraction. C. rapid ejection. D. rapid filling. 10. The plateau phase of the myocardial action potential is due to the opening of: A. *voltage-gated slow Ca 2+ channels. B.
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Exam 3 Fall 2004 - Examination III VPHY 3100 Elements of...

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