Respiratory System

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Across
  1. 2. Lined with hair to remove particles from the air
  2. 4. Air filled cavities in the skull, keep air moist
  3. 5. Air sacs in your lungs, lined with capillaries for gas exchange
  4. 6. Minor air passages of the respiratory system
  5. 10. Major air passages of the respiratory system
  6. 12. Membrane lined cavity behind the nose and mouth
  7. 13. Your "windpipe"; contains rings of cartilage for support
Down
  1. 1. Waste gas that's released from the lungs
  2. 3. Primary organs of the respiratory system
  3. 7. Hollow passage that contains the voice box
  4. 8. Small, cellular hairs that line the trachea, keep mucus moving
  5. 9. Muscle in your abdomen that powers the respiratory system
  6. 11. Gas brought in by your lungs