meg
Forum Guru
Topics: 62
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On internal medicine rounds, the attending is reviewing the myocardial action potential. In which of the following phases of the action potential do the voltage-gated potassium channels begin to open?
A. Phase 0
B. Phase 1
C. Phase 2
D. Phase 3
E. Phase 4
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| asmi
Forum Hero
Topics: 1043
Posts: 4,609
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PHASE 1...slight repolarisation and then again in phase 3
therefore i think B
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| mjl1717
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answer-b
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| meg
Forum Guru
Topics: 62
Posts: 806
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correct 
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