| Similar to the control group, the large bronchi were lined with simple cuboidal cells and contained discrete glands within the underlying wall. |
| From the nose and mouth, air passes into the trachea and into each lung, through two airways called the bronchi. |
| They are concentrated in the carina and primary bronchi, and are also believed to be cough receptors. |
| Human bronchi were obtained from lung resections or lobectomies and cultured as previously described. |
| The saccular or cystic form is the most severe type and is characterized by a ballooning of the bronchi with fluid-filled, sac-like dilatations. |
| Additionally, the bronchi, trachea, and larynx demonstrated generalized erythema of the mucosa with overlying thin yellow mucus. |
