cardiovascular system

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Across
  1. 2. supply heart muscle
  2. 4. tiny blood vessels
  3. 10. fast heart rate
  4. 14. hearts upper chamber
  5. 15. heart activity test
  6. 17. hearts lower chamber
  7. 18. heart contraction phase
  8. 19. high blood pressure
  9. 20. carries blood from lungs
  10. 21. slow heart rate
  11. 24. carry blood to heart
  12. 25. carry blood from heart
Down
  1. 1. irregular heartbreak
  2. 3. hearts outer sac
  3. 5. hearts inner lining
  4. 6. blood oressure hormone
  5. 7. hearts beat sequence
  6. 8. low blood pressure
  7. 9. beats per minute
  8. 11. main artery from heart
  9. 12. restore heart rhythm
  10. 13. carries blood to lungs
  11. 16. force on artery walls
  12. 22. heart relaxation phase
  13. 23. heart muscle