Across
- 2. large muscles on the floor of the chest cavity that cause breathing
- 3. small air sacs in the lungs
- 5. pull air into the lungs
- 8. gas in the air needed by your body
- 9. push air into the lungs
- 10. sticky,slime like substance found in the nose
- 11. gas produced by your body as a waste product
- 12. another name for breathing
- 13. major organs for respiration/breathing
Down
- 1. tiny hairs found in the nose
- 4. voicebox
- 6. flap of skin that keeps found out of the trachea
- 7. two tubes that branch off trachea to carry air to the lungs
- 11. smallest blood vessels