Across
- 3. Long-term and difficult to get rid of
- 5. Tiny air sacs in the lungs where gas exchange occurs
- 7. Causing blockage or obstruction
Down
- 1. Tubes that bring air from your Trachea to your lungs
- 2. Another name for the Trachea
- 4. Relating to the lungs
- 6. Sickness/Illness/Disorder