Cardiovascular System

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Across
  1. 1. Node Controls heart rhythm after the SA node
  2. 5. Narrowing of blood vessels
  3. 7. Breathing technique affecting blood flow
  4. 8. Heart relaxation phase
  5. 10. Small vein
  6. 12. Law Heart pumps more blood when filled with more
  7. 14. Relating to the lungs
  8. 15. Prevents backflow of blood
  9. 17. Wall dividing the heart
  10. 19. Lower chamber of the heart
  11. 21. Upper chamber of the heart
  12. 24. fibers Fibers conducting electrical signals in the heart
Down
  1. 1. Small artery
  2. 2. Irregular heart rhythm
  3. 3. Widening of blood vessels
  4. 4. Largest artery in the body
  5. 6. Blood vessel carrying blood away from the heart
  6. 9. Heart contraction phase
  7. 10. Blood vessel carrying blood to the heart
  8. 11. Node Heart’s natural pacemaker
  9. 12. volume Amount of blood pumped by the heart in one beat
  10. 13. Outer layer of the heart
  11. 16. Test to measure heart’s electrical activity
  12. 18. Muscle layer of the heart
  13. 19. Thickness of blood
  14. 20. Inner layer of the heart
  15. 22. Protective sac around the heart
  16. 23. cava Large vein carrying blood to the heart