Cardiovascular System

123456789101112131415161718192021222324252627
Across
  1. 2. Heart relaxation phase
  2. 6. Largest artery in the body
  3. 8. Small vein
  4. 9. Prevents backflow of blood
  5. 11. Upper chamber of the heart
  6. 14. Narrowing of blood vessels
  7. 15. volume Amount of blood pumped by the heart in one beat
  8. 17. Breathing technique affecting blood flow
  9. 21. fibers Fibers conducting electrical signals in the heart
  10. 23. Irregular heart rhythm
  11. 24. Outer layer of the heart
  12. 25. Blood vessel carrying blood away from the heart
  13. 26. Heart pumps more blood when filled with more
Down
  1. 1. Blood vessel carrying blood to the heart
  2. 3. Inner layer of the heart
  3. 4. Test to measure heart’s electrical activity
  4. 5. Relating to the lungs
  5. 7. Node Controls heart rhythm after the SA node
  6. 9. Thickness of blood
  7. 10. Node Heart’s natural pacemaker
  8. 12. Widening of blood vessels
  9. 13. Small artery
  10. 16. Muscle layer of the heart
  11. 18. Lower chamber of the heart
  12. 19. Heart contraction phase
  13. 20. Protective sac around the heart
  14. 22. cava Large vein carrying blood to the heart
  15. 27. Wall dividing the heart