Respiratory System Terms

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Across
  1. 2. air-filled space above and behind the nose in the middle of the face
  2. 4. large tubes that connect to the trachea and direct air to the right and left lungs; bronchial tube
  3. 5. throat
  4. 7. muscle that sits below lungs and contracts and relaxes to allow breathing to occur
  5. 8. windpipe
  6. 10. primary organs of the respiratory system in humans and most animals
  7. 12. pertaining to a blood vessel
  8. 14. nostrils
  9. 15. nasal wall
  10. 16. inhaling, breathing in
  11. 18. small branches of the bronchus
Down
  1. 1. study of the ear, nose, and larynx
  2. 3. pertaining to the chest
  3. 6. leaf-like structure that closes over the trachea to prevent aspiration of food or liquids
  4. 9. exhaling/breathing out
  5. 10. voice box
  6. 11. study of the lungs
  7. 13. small air sacs where air exchange actually takes place
  8. 17. wet, slippery membranes that covers the lungs