Across
- 2. The alveoli are where the lungs and the blood
- 6. commonly known as the windpipe
- 7. the prominent structure between the eyes
- 8. The lungs are a pair of spongy
- 9. The difference between oxygen (O) and oxygen O2 is that the former
Down
- 1. Bronchioles are air passages inside the lungs
- 3. is a passage or airway in the lower respiratory tract
- 4. dioxide Exposure to CO2 can produce a variety of health effects
- 5. is the net movement of anything