Across
- 2. the muscle that works with your lungs
- 4. the waste exhales from the body
- 7. small air tubes
- 8. sends oxygen to cells
- 10. you can smell with
- 11. the smallest blood vessel
Down
- 1. change of density
- 3. the organ responsible for breathing
- 5. the thing we breath
- 6. air sacs for the lungs
- 7. the airways for the lungs
- 9. protection for the lungs