Charlotte's HEART and Lung Crossword

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Across
  1. 3. Chronic condition causing airway inflammation
  2. 5. Largest artery in the body
  3. 7. Arteries supplying the heart muscle
  4. 8. Membrane surrounding the lungs
  5. 10. Upper chamber of the heart
  6. 12. Sac enclosing the heart
  7. 14. Muscle that helps with breathing
  8. 17. Lower chamber of the heart
  9. 18. Gas absorbed into the blood via lungs
  10. 19. Act of breathing in
Down
  1. 1. Windpipe leading to lungs
  2. 2. Relating to the heart
  3. 4. Tiny air sacs where gas exchange occurs
  4. 6. Major air passages of the lungs
  5. 7. Movement of blood throughout the body
  6. 9. Act of breathing out
  7. 11. Test measuring lung function
  8. 13. Structure that prevents backflow
  9. 15. Heartbeat felt through arteries
  10. 16. Heart muscle tissue