Across
- 2. : A tiny branch of air tubes in the lungs.
- 4. When something you swallow goes down the wrong way.
- 6. : Lip
- 7. : Dust
Down
- 1. : The significant passages that lead from the trachea (windpipe) to the lungs
- 3. Tissue between the back of the nose and the throat.
- 4. Any air sacs of the lungs that allow rapid gaseous exchange.
- 5. : Incomplete, unfinished; defective.
- 6. : Carbon Dioxide