The Respiratory System

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Across
  1. 1. makes noise when you talk
  2. 5. The largest organs in the respiratory system; in a pair
  3. 8. tube, ringed by cartilage, that brings air down into the lungs
  4. 9. Carried by the red blood cells from the lungs to the heart and out to the body
  5. 10. A muscle that contracts and expands to control breathing
Down
  1. 2. tiny little fingers that help move mucus from the trachea up to the throat
  2. 3. picked up by red blood cells in the body and carried back
  3. 4. On your face, takes in air and helps you smell!
  4. 6. gathers germs and dust to be expelled by coughing
  5. 7. Big "trees" that carry air from the trachea into the lungs