Sputum | mucous | Britannica

symptoms of respiratory disease

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  In respiratory disease: Signs and symptoms

  A cough productive of sputum is the most important manifestation of inflammatory or malignant diseases of the major airways, of which bronchitis is a common example. In severe bronchitis the mucous glands lining the bronchi enlarge greatly, and, commonly, 30 to 60 ml of sputum are produced in a…

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  In respiratory disease: Chronic bronchitis

  sputum production of chronic bronchitis were once dismissed as nothing more than “smoker’s cough,” without serious implications. But the striking increase in mortality from chronic bronchitis and emphysema that occurred after World War II in all Western countries indicated that the long-term consequences of chronic…

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