Across
- 2. scientific name for the voice box
- 3. air sacs located in the lungs
- 7. scientific name for the throat
- 8. scientific name for the vocal cords
- 9. space between the lungs and the thorax
- 11. scientific name for the windpipe
- 12. division of the lower end of the trachea
- 13. temporary stoppage of breathing
Down
- 1. difficult or labored breathing
- 4. cartilage lid covering opening to the larynx
- 5. scientific principle stating the movement that occurs from an area of high concentration to an area of low concentration
- 6. small hairs that trap dirt particles
- 7. lining of the lungs
- 10. nerve carrying impulses to the diaphragm