RESPIRATORY SYSTEM

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Across
  1. 2. Little hairs inside bronchial tubes that help remove unwanted matter from the lungs
  2. 5. Small passages (look like tree branches) inside the lungs
  3. 10. Place where air can enter
  4. 11. The windpipe
  5. 12. Invisible gas that we need for our cells to work properly
  6. 14. Help keeps your lungs healthy
Down
  1. 1. Dome shaped muscle
  2. 3. Damages your lungs
  3. 4. SYSTEM Body system responsible for breathing
  4. 6. Harmful waste gas that we need to get rid of
  5. 7. Organs where the air exchange happens
  6. 8. Main function of the respiratory system
  7. 9. Tiny sacs surrounded by blood vessels
  8. 13. Bones that protect the lungs