Exam 3 Spring 2008 - Examination III VPHY 3100 Elements of...

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Examination III VPHY 3100 Elements of Physiology March 31, 2008 1:25 - 2:15 p.m. Multiple Choice (2.5% each) Choose the BEST answer 1. 1. The “polymorphonuclear cell” refers to: A. *neutraphil. B. eosinophil. C. lymphocyte. D. monocyte. 2. 2. Which one of the following blood cells has the longest average lifespan? A. Erythrocytes. B. Granulocytes. C. *Lymphocytes. D. Thrombocytes. 3. 3. The blood fluid layer after clot formation is called A. whole blood. B. formed elements. C. plasma D. *serum. E. exudate. 4. 4. Which of the following chemicals inhibit platelet aggregation reaction? A. a. prostacyclin b . NO c . thromboxane A 2 d . ADP A. B. C. D. E. 5. 5. Aspirin increases: A. formation of prostaglandin. B. *bleeding time. C. formation of thromboxane. D. platelet aggragation. 6. 6. During isovolumetric ventricular relaxation: A. left ventricular pressure exceeds aortic pressure. B. *atrial pressure is less than ventricular pressure. C. ventricular pressure is increasing. D. the atrioventricular valves are open. 1
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7. 7. During the cardiac cycle, the phase of final filling is caused by: A. ventricular systole. B. ventricular diastole. C. *atrial systole. D. atrail diastole. 8. 8. The plateau phase of myocardial action potentials represents the: A. *entry of Ca 2+ from the extracellular fluid to cytosol. B. entry of Na + from the extracellular fluid to cytosol. C. efflux of K + from the cytosol to extracellular fluid. D. closure of all voltage-gated ion channels. 9. 9. Which sequence demonstrates the pathway of electrical activity of the heart? A. AV node AV bundle SA node conduction myofibrils. B. AV bundle AV node conduction myofibrils SA node. C. *SA node AV node AV bundle conduction myofibrils. D.
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This note was uploaded on 08/19/2009 for the course VPHY 3100 taught by Professor W during the Spring '05 term at University of Georgia Athens.

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Exam 3 Spring 2008 - Examination III VPHY 3100 Elements of...

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