Across
- 3. – tiny air sacs where gas exchange (oxygen in, carbon dioxide out) happens.
- 4. – alternate entry for air.
- 6. – passage for air from the nose and mouth.
- 7. – two main branches of the trachea leading to each lung.
- 8. – main organs of respiration that contain bronchi, bronchioles, and alveoli.
Down
- 1. – muscle below the lungs that helps with inhaling and exhaling.
- 2. – smaller airways branching from the bronchi inside the lungs.
- 5. – tube that carries air to the lungs.
- 8. – contains the vocal cords and connects to the trachea.