Respiratory System Crossword

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Across
  1. 4. seals off the windpipe during eating so that food is not accidentally inhaled
  2. 5. uncontrolled growth of abnormal cells in one or both lungs
  3. 7. one of two membranes around the lungs
  4. 9. separates the abdomen from the chest
  5. 11. also known as "voice box"
  6. 13. plural form of bronchus
  7. 15. if left untreated, can cause pneumonia
  8. 16. inflammatory disease of the airways of the lungs
  9. 18. smallest blood vessels in the body
  10. 19. deliver air to tiny sacs called
Down
  1. 1. amount of air that remains in a person's lungs after fully exhaling
  2. 2. help form and move the chest wall
  3. 3. alveoli fill with fluid or pus, making it difficult to breathe
  4. 6. is located inside of your nose
  5. 7. regulate the passage of air to the lungs and food to the esophagus
  6. 8. a condition that causes shortness of breath
  7. 10. max amount of air a person can expel from the lungs after a max inhalation
  8. 12. beginning of the digestive tract
  9. 14. rigid tube extending from the larynx
  10. 17. tiny balloon shaped air sacs