Across
- 2. Bones protecting the lungs
- 3. Voice box
- 5. Windpipe that carries air to the lungs
- 7. Organs where gas exchange occurs
- 9. Tubes branching from the trachea into the lungs
- 10. Throat passage connecting nose and mouth to larynx
- 11. Gas your body needs to survive
Down
- 1. Another word for inhaling and exhaling
- 4. Main entry for air into the respiratory system that keeps your throat moist
- 6. Tiny air sacs where oxygen enters the blood
- 8. Muscle that helps you breathe