Across
- 2. Network of tubes that conduct air through the lungs
- 4. Picks up oxygen from the air sacs
- 5. Contains two sets of heavy folds called vocal cords
- 7. Part of the pharynx behind the mouth
- 10. Part of the pharynx behind nasal cavity
- 11. Normal pathway for air to enter the respiratory system
- 12. Lungs contain over 500 million tiny air sacs called...
Down
- 1. Also known as the windpipe
- 3. Stored energy made from almost any food
- 6. Slime in our nose and lungs that collect dust particles and dirt
- 8. Also known as the throat
- 9. Pair of cone-shaped organs in the thoracic cavity