Nancy's cardiovascular terms

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Across
  1. 2. muscular middle layer of the heart
  2. 3. abnormal heart rhythms
  3. 5. abnormal swollen and twisted vein that occurs in the leg
  4. 9. relaxation phase of the heart
  5. 10. instrument to measure blood pressure
  6. 11. rapid but regular contraction of the atrial
  7. 12. tiny blood vessels that transport oxygen, blood, and nutrients to cells
  8. 15. pacemaker of the heart
Down
  1. 1. improper closure of the mitral valve
  2. 4. inner lining of the heart
  3. 6. contraction phase of the heart
  4. 7. small vein
  5. 8. local widening of an atrial wall
  6. 13. vessel
  7. 14. largest artery in the body