101_Sp10_MT2_NoKey (2)

101_Sp10_MT2_NoKey (2) - Print Name:...

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Unformatted text preview: Print Name: ________________________________ Test From: A UCD ID#: _____________________ 1 NPB101_Sp10 - MT2 Scantron: 1. Clearly Print your Name 2. Subject: NPB101 Sp10. 3. Test No: MT2 4. Date: 5-19-10 5. Bubble in your UCD ID# and write each digit at the top of its column. 6. Bubble in Test Form FOR QUESTION #31, BUBBLE IN A IF YOU WANT YOUR SCANTRON RETURNED TO THE PUBLIC BOXES. IF YOU WANT TO PICK IT UP FROM THE TA LEAVE #31 BLANK. Turn in only your Scantron. You may keep the examination. Multiple Choice/ True-False Identify the choice of the answer that best completes the statement or answers the question. 30 questions . ____ 1. Condition: Inward and outward current flow both increase in the Purkinje fiber. Outward current flow is greater than inward current flow. What will happen to the membrane potential of the Purkinje fiber? a. No change in the membrane potential. c. Depolarization of the membrane potential. b. Repolarization of the membrane potential. d. There is insufficient information to determine what will happen to the membrane potential. Print Name: __________________________ Test Form: A UCD ID#:__________________ 2 ____ 2. Statement #1: During phase 0, the upstroke of the Purkinje fiber action potential, there are more K channels open than during phase 4, the resting membrane potential. Statement #2: During phase 0, the amount of K current flow is less than that during the resting membrane potential. a. Both Statements are true. c. Only the first Statement is true. b. Both Statements are false. d. Only the second Statement is true. ____ 3. A region of cardiac tissue is effectively refractory. Statement #1: You can conclude that all the cells in this region are absolute refractory. Statement #2: You would not expect activation to proceed through this region of tissue. a. Both Statements are true. c. Only the first Statement is true. b. Both Statements are false. d. Only the second Statement is true. ____ 4. A segment of cardiac tissue is activated early in its relative refractory period. Statement #1: You would expect conduction through this tissue to be slower than when its excitability is fully recovered. Statement #2: You would expect the individual cells action potentials to be lower in amplitude and have a reduced rate of rise compared to when they are fully recovered. a. Both Statements are true. c. Only the first Statement is true. b. Both Statements are false. d. Only the second Statement is Print Name: __________________________ Test Form: A UCD ID#:__________________ 2 ____ 2. Statement #1: During phase 0, the upstroke of the Purkinje fiber action potential, there are more K channels open than during phase 4, the resting membrane potential....
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This note was uploaded on 01/30/2012 for the course BIS 101/102 taught by Professor Etzler during the Spring '10 term at UC Davis.

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101_Sp10_MT2_NoKey (2) - Print Name:...

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