The Respiratory System

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Across
  1. 7. Tiny hair-like structures that sweep mucus and dirt out of the lungs
  2. 9. The scientific name for the throat; it connects the nose and the mouth to the larynx
  3. 10. The waste gas that is produced by cells and exhaled by the lungs
  4. 12. The process of breathing air out of the lungs
  5. 13. The main tube/windpipe that connects the larynx to the lungs
  6. 14. The process of taking air into the lungs
Down
  1. 1. Tiny grape-like air sacs where gas exchange occurs
  2. 2. The flap of cartilage that covers the windpipe while swallowing to prevent choking
  3. 3. 2 Large tubes that branch off from the trachea into each lung
  4. 4. The gas that the body needs to produce energy
  5. 5. Small, thinly walled branches that lead from the bronchi to the air sacs
  6. 6. Disease where the airways are chronically swollen and inflamed
  7. 8. Contains the vocal cords
  8. 11. The large muscle at the bottom of the chest that powers breathing