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