Across
- 2. This is the muscle that is responsible for inflating and deflating the lungs
- 5. These are the small air tubes that connect the bronchus to the alveoli
- 6. It is the pipe that sends air to the lungs
- 9. what we use to smell?
- 10. tiny blood vessels have thin walls
- 11. What we breath in
Down
- 1. is the net movement of anything generally from a region of higher concentration to a region of lower concentration
- 3. It is the organ that collects the air
- 4. These are the air sacs that exchange oxygen and carbon dioxide in the blood
- 5. It is found at the end of the trachea and splits the air into each lung
- 7. Protects the organs in the thoracic cavity
- 8. dioxide What we breath out