| __ | 1. | Alveoli | | A. | Two large air tubes that branch off the trachea |
| __ | 2. | Bronchi | | B. | To breathe air into the lungs |
| __ | 3. | Bronchioles | | C. | Tiny air sacs at the end of bronchioles |
| __ | 4. | Diaphragm | | D. | Small air tubes that connect the bronchi to the alveoli |
| __ | 5. | Exhale | | E. | Known as the windpipe, large air tube that connects airways |
| __ | 6. | Inhale | | F. | Known as the voice box, contains the vocal cords |
| __ | 7. | Intercostal Muscles | | G. | Membranes that are controlled by muscles and produce sound |
| __ | 8. | Larynx | | H. | A flat muscle located beneath the lungs, enables air flow |
| __ | 9. | Trachea | | I. | To breathe air out of the lungs |
| __ | 10. | Vocal Cords | | J. | A group of muscles located between the ribs |