The heart & heart disease

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Across
  1. 3. known as the pace maker of the heart
  2. 4. heart rate of more than 100bpm
  3. 5. clinical test in which coronary vessels are imaged after dye is injected
  4. 6. discomfort in the chest from inadequate blood flow to the heart
  5. 8. abnormal rhythm of the heart
  6. 9. lack of blood supply to an area
Down
  1. 1. sudden occlusion of a coronary artery with complete obstruction of blood flow
  2. 2. records the electrical activity of the heart as it functions
  3. 7. medical term for a clot