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    Seeleys Anatomy and Physiology
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    Exam 20: Cardiovascular System: the Heart
  5. Question
    The Spontaneous Opening of Na<sup>+</sup> Channels Marks the Beginning of ________
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The Spontaneous Opening of Na+ Channels Marks the Beginning of ________

Question 89

Question 89

Multiple Choice

The spontaneous opening of Na+ channels marks the beginning of ________ of a cardiac muscle cell.


A) depolarization
B) repolarization
C) hyperpolarization
D) isopolarization
E) afterpolarization

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