BME365R_Exam3_2008 - Name: _ Exam 3 Quantitative Physiology...

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Name: __________________________________ Exam 3 Quantitative Physiology - BME 365R December 3, 2008 Draft Solution You are allowed use of a scientific calculator. Exam is closed notes and no communication with any neighboring or outside entity is allowed. Multiple Choice Questions (3 points each). In each of the following questions choose the best answer. Consider the following pressure volume loop for the left ventricle. 1. During the A to B segment, A. Only the mitral valve is open B. Only the aortic valve is open C. Both valves are closed D. Both valves are open E. None of the above 2. During the B to C segment, A. Only the mitral valve is open B. The mitral and aortic valve are open C. Only the aortic valve is open D. Both the aortic and mitral valves are closed E. None of the above 3. During the C to D segment, A. Only the aortic valve is open B. Only the mitral valve is open C. Both the aortic and mitral valves are open D. Both the aortic and mitral valves are closed
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Name: __________________________________ E. None of the above 4. The vertex corresponding to end diastolic volume is A. Vertex A B. Vertex B C. Vertex C D. Vertex D E. None of the above 5. The stroke volume for the left ventricle shown in the pressure-volume loop is, A. 30 ml B. 90 ml C. 60 ml D. 45 ml E. None of the above 6. If the heart in the pressure-volume loop is beating at 60 beats/min, the cardiac output is A. 30 ml/s B. 90 ml/s C. 60 ml/s D. Need more information E. None of the above 48. Assume the heart is beating at 60 beats/min, the power provided by the left ventricle is A. 420 mmHgml/s B. 360 mmHgml/s C. 540 mmHgml/s D. 700 mmHgml/s E. None of the above 7. Assume the heart rate is 60 beats/min, the power in milliwatts (mW) provided by the left ventricle is (assume that 1mmHg = 133.3 Pascals) A. 56 mW B. 48 mW C. 72 mW D. None of the above 8. The cardiovascular unit for compliance is: A. mmHg/ml B. ml/mmHg C. m 3 /Pascal D. No units for cardiovascular compliance exist E. None of the above
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Name: __________________________________ 9. The cardiovascular unit for resistance is A. mmHg·s/ml B. ml/(mmHg·s) C. Ohms D. No units for cardiovascular resistance exist E. None of the above 10. The units of viscosity in the MKS system (meters-kilograms-seconds) is A. centi-Poise or cP B. Poise C. milli-Poise D. None exist E. None of the above 11. The mathematical relationship we discussed in class with the algebraic form , γ μ τ = rz A. Is valid only for a Newtonian fluid B. Is valid for only a Casson fluid C.
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This note was uploaded on 12/13/2011 for the course BME 365R taught by Professor Rylander during the Spring '09 term at University of Texas at Austin.

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BME365R_Exam3_2008 - Name: _ Exam 3 Quantitative Physiology...

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