Across
- 2. the process whereby gases move from an area of high pressure to low pressure.
- 6. hollow tube that air passes through
- 9. breathing in and out / lungs and blood exchange
- 11. metabolic reactions and processes
- 14. protein in red blood cells
- 15. carries air, fluid and food from the nose and mouth
- 16. looks like 2 black or pink sacs
Down
- 1. tree limbs that branch inside the lungs
- 3. muscles located in rib cage
- 4. tunnels that connect the windpipe into the lungs
- 5. breathing in
- 7. breathing out
- 8. strong but flexible tissue
- 10. chord voice box kinda thing
- 12. allows air to pass into larynx and lungs
- 13. a u-shaped tube that connects the breathing sacks to the speaking box