{pixabay|100|campaign} Emphysema is a pathological increase in the size of airspaces distal to the terminal bronchioles, with destruction of the alveolar walls. The term hyperinflation is used to denote non-pathological over-distension.   Etiology Diseases of the Airways: Chronic bronchitis, prolonged exposure to irritants and dusts (heavy cigarette smoking), and chronic partial bronchial obstruction.   Conditions…

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