sample_BME501_Cardiovascular_Midterm_Exam__1_20070403_soln_updated

Sample_BME501_Cardiovascular_Midterm_Exam__1_20070403_soln_updated

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BME 501 Midterm Exam #1 NAME:__________________________ 1 Exam Conditions: a. You have 120 minutes to complete the exam. b. You may use books and notes for this exam. Computers should not be used. c. You may not receive assistance during the exam. d. After the TA has given the signal to start, check the number of pages in your exam. e. Cover your answers from your neighbors. f. Remember to put your name at the top of the first page. Place your name or initials on other pages. g. Staring at others’ exams will result in expulsion from this University with no exception for this midterm. This behavior is unfair to your fellow classmates. Excerpt from the USC Catalogue: Academic Dishonesty Sanctions When a student is found responsible for a violation of the USC Student Conduct Code standards pertaining to academic dishonesty, the Vice President for Student Affairs (or designee) will inform the Office of Academic Records and Registrar. In appropriate cases, the Office of Academic Records and Registrar will post the information on the student's academic records. Disciplinary sanctions noted on student records include suspension and expulsion from the university and revocation of admission and degree. Disciplinary grade sanctions (e.g., F in course) are not distinguished on a student's transcript from marks assigned for academic work accomplished.
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BME 501 Midterm Exam #1 NAME:__________________________ 2 1. If the AV conduction is destroyed, where would be the placement of pacemaker lead (Which heart chamber)? The right ventricle. See Dr. Hsiai’s PowerPoint Chapter 6, slide 21. 2. An athlete who collapsed on the field was diagnosed with long QT syndrome. Show an EKG tracing and label Q and T for this athlete. Source: http://www.mayoclinic.com/health/long-qt-syndrome/DS00434
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BME 501 Midterm Exam #1 NAME:__________________________ 3 3. Show and label an action potential for SA node. Source: Dr. Hsiai’s PowerPoint Chapter 8, slide 27. 4. Show and label an action potential for bundle of His. Source: Dr. Hsiai’s PowerPoint Chapter 8, slide 24.
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BME 501 Midterm Exam #1 NAME:__________________________ 4 5. Contrast action potential curves between AV node and Purkinje fiber. An action potential in the AV node is slower than an action potential in the Purkinje fiber. The slow action potential of the AV node exhibits no phase 1. In the AV node, phase zero rapid depolarization depends on calcium currents, whereas in Purkinje fibers the fast action potential depends on sodium channels. See Dr. Hsiai’s PowerPoint Chapter 8, slides 24 and 27. 6. Where are mitral and tricuspid valves in the heart? The tricuspid valve is found between the right atrium and right ventricle and the mitral valve is found between the left atrium and left ventricle. See Dr. Hsiai’s PowerPoint Chapter 4, slide 6. 7.
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This note was uploaded on 02/27/2008 for the course BME 501 taught by Professor Yamashiro,hsiai during the Fall '07 term at USC.

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Sample_BME501_Cardiovascular_Midterm_Exam__1_20070403_soln_updated

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