Across
- 1. passage area for air
- 5. series of chemical reactions that break down glucose
- 7. windpipe
- 8. breathing
- 11. Block air way
- 12. Supplies the body with oxygen
- 13. muscles that present within the rib cage
- 15. Tiny air sacks
- 16. Movement of molecules from high to low concentration
Down
- 2. found in red blood cells that carries oxygen
- 3. Branches into which a bronchus divides
- 4. Produce voice
- 6. expiration of air from the lungs
- 9. strong connective tissue
- 10. major air passages of the lungs which diverge from the windpipe
- 14. Sound Production