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    Biology
  3. Study Set
    Essentials of Anatomy and Physiology
  4. Exam
    Exam 12: The Heart
  5. Question
    The Part of the Heart Muscle That Usually Depolarizes First
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The Part of the Heart Muscle That Usually Depolarizes First

Question 89

Question 89

Short Answer

The part of the heart muscle that usually depolarizes first in a heartbeat is the ____________________.

Correct Answer:

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