Electrophysiology

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Across
  1. 3. The two lower chambers of the heart.
  2. 5. A line or pattern on an ECG that shows the heart’s electrical activity.
  3. 8. A device or natural body part that controls the rhythm of the heart.
  4. 10. The sound or movement caused by the contraction of the heart.
Down
  1. 1. A small area in the heart where electrical impulses start or are relayed.
  2. 2. Thin, thread-like structures that help carry electrical signals in the heart.
  3. 4. A test that records the electrical activity of the heart.
  4. 6. The two upper chambers of the heart.
  5. 7. An electrical signal that travels through the heart to make it beat.
  6. 9. The action of the heart muscle tightening to pump blood.