Across
- 5. removes carbon dioxide from the body and supplies it with fresh oxygen
- 7. a disease that progressively destroys the walls of the alveoli
Down
- 1. a contagious bacterial infection that usually affect the lungs
- 2. a muscle that separates the chest from the abdominal cavity
- 3. a inflammatory condition that causes difficulty breathing
- 4. the main airways that reach into to the lungs
- 6. also called a windpipe