Across
- 2. The process of releasing carbon dioxide from the lungs (10 letters)
- 5. Waste gas removed from the body via the lungs (6 letters)
- 7. The organ system that includes the lungs (11 letters)
- 8. The structure that connects the throat to the lungs (7 letters)
Down
- 1. Primary gas absorbed by lungs during respiration (6 letters)
- 3. The number of lungs in the human body (3 letters)
- 4. Tiny air sacs where gas exchange takes place (8 letters)
- 6. Tubes that carry air from the trachea into the lungs (7 letters)