Across
- 1. A pipe that sends air to the lungs
- 4. It is found at the end of the trachea and splits the air into each lung
- 5. the muscle that is responsible for inflating and deflating the lungs
Down
- 2. air sacs that exchange oxygen and carbon dioxide in the blood
- 3. an organ that collects the air
- 4. small air tubes that connect the the bronchus to the alveoli