ECG

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Across
  1. 5. Allow sodium and calcium movement between cardiac cells
  2. 7. Fibers that rapidly distribute electrical signal through ventricles
  3. 8. Conduction pathway that carries signal after the AV node
  4. 10. Phase when cardiac muscles contract
  5. 12. Measures electrical activity of the heart over time
  6. 13. Represents ventricular repolarization
  7. 14. Electrical activity of the atria (atrial depolarization)
Down
  1. 1. Ion primarily responsible for repolarization
  2. 2. Period when ventricles are fully depolarized
  3. 3. Natural pacemaker of the heart
  4. 4. Total time for ventricular depolarization and repolarization
  5. 6. Represents rapid ventricular depolarization
  6. 9. Phase when cardiac muscles relax
  7. 11. Time for electrical signal to travel from atria to ventricles (AV node delay)