Bronchitis and normal condition in tertiary bronchus
![Bronchitis and Normal Condition in Tertiary Bronchus](/TransAdam/doc/graphics/images/en/19357.jpg)
Bronchitis and normal condition in tertiary bronchus
Bronchitis is an inflammation of the air passages in the lungs. The condition occurs over a long period and recurs over several years. Symptoms include excessive bronchial mucus with a cough producing sputum. Cigarette smoking (active and passive exposure) is the chief cause of this disease, with air pollution, infection, familial factors, and allergies as exacerbating factors.
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