Across
- 2. Produce voice
- 7. muscular organ forming an airway to the lungs
- 8. A tough, flexible tissue that gives structure to the nose
- 11. air sacs of the lungs
- 12. Covers the opening of the windpipe when swallowing
- 14. Sending air out of the lungs
- 15. The cavity behind the nose
- 16. Taking a substance into the body by breathing
Down
- 1. A large airway that leads from trachea to lungs
- 3. oxygen is used to make energy from sugars
- 4. Movement of molecule from high concentration to low concentration
- 5. The airway that leads from the larynx to the bronchi
- 6. Protein inside red blood cells
- 9. Between the ribs
- 10. A tiny branch of air tubes in the lungs
- 13. pair of organs in the ribcage