| A | B |
|---|
| pharnyx | tube-like passageway for both food and air |
| larynx | voice-box, vocal cords attached |
| bronchi | 2 branches that carry air into the lungs |
| alveoli | tiny, thin-walled sacs surrounded by capillaries |
| diaphragm | muscle beneath the lungs that helps move air in and out |
| chronic bronchitis | disease in which bronchial tubes are irritated, results in too much mucus |
| emphysema | a disease in which the alveoli lose their ability to expand and contract |
| asthma | disorder of the lungs which results in shortness of breath |
| trachea | 12 cm tube lined with cartilage. |
