Across
- 2. Muscular tube for breathing and food digestion
- 7. Prevents food and water from entering the respiratory system
- 9. "Air sacs"- Place where the exchange of oxygen and carbon dioxide takes place
- 10. Space Aids lungs during breathing
- 11. "Windpipe"
Down
- 1. Carry the air into your lungs
- 3. Allows air to enter the body and filters debris
- 4. Takes in oxygen for your blood; allows you to breathe
- 5. Tissue that protects the lungs
- 6. Tubes Allow air in and out of your lungs
- 8. Flattens the chest cavity and pulls air into the lungs