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What would be a possible consequence of the SA node failing to depolarise?

waelhammad
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2022-10-18
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What would be a possible consequence of the SA node failing to depolarise?

  1. the entire heart would not contract
  2. the heart rate will decrease
  3. the ventricles would not contract
  4. the heart rate will increase
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waelhammad
2022-10-18
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B: The SA node contains cells that will depolarise at a faster rate than others in the heart. If it fails, these other places will depolarise, but their rate will be slower than that of the SA node.

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