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  1. 2. This type of heart block involves complete failure of electrical transmission
  2. 5. The heart’s upper chambers, responsible for receiving blood (plural)
  3. 6. The medical device used to treat severe heart block
  4. 8. A type of heart block where some impulses from the atria fail to reach the ventricles
  5. 9. This condition may be caused by heart block and involves the buildup of fluid in the lungs.
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  1. 1. A condition in which the heart's rhythm is irregular due to a problem with the electrical system.
  2. 3. A condition that occurs when the heart cannot pump enough blood to meet the body's needs, often a complication of untreated heart block
  3. 4. Type of heart block characterized by a delay or interruption in the electrical signals between the atria and ventricles
  4. 7. The structure responsible for transmitting electrical impulses in the heart (abbreviation).