Respiratory System Crossword Puzzle

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Across
  1. 2. The-greatest-volume-of-air-that-can-be-expelled-from-the-lungs-after-taking-the-deepest-possible-breath
  2. 6. Keep-the-alveoli-from-collapsing-onto-each-other
  3. 10. Voice-box
  4. 12. The-finer-tubes-that-the-bronchi-split-into
  5. 13. The-movement-of-air
  6. 14. A-sheet-of-muscle-that-separates-the-thoracic-cavity-from-the-abdominal-cavity
  7. 15. Exchange-of-O2-and-CO2
Down
  1. 1. A-system-in-which-air-is-pulled-into-the-lungs
  2. 3. You-can-produce-sounds-by-voluntarily-tensing-muscles-that-stretch-the-____-so-they-vibrate
  3. 4. Place-that-takes-in-gas-and-gets-rid-of-it
  4. 5. The-throat
  5. 7. Grapelike-clusters-of-air-sacs
  6. 8. Windpipe
  7. 9. Ventilation-of-the-lungs-through-alternating-inhalation-and-exhalation
  8. 11. The-two-branches-from-the-trachea