Across
- 3. takes in oxygen and distributes through your blood and removes waste carbon dioxide
- 4. The narrow tubes that form off of the bronchus and end in tiny sacks called alveoli
- 5. A large tube that provides a clear airway for air to pass to the lungs
Down
- 1. It allows you to breathe air in and out throughout your body
- 2. This is the first part of the respiratory system