The chronic disorder in which alveolar walls are damaged leading to decrease in respiratory surface area is

Emphysema is a chronic disorder in which alveolar walls are damaged and so respiratory surface is decreased. One of the major causes of this is cigarette smoking.Asthma is a difficulty in breathing causing wheezing due to inflammation of bronchi and bronchioles.Asbestosis is a chronic lung condition that is caused by prolonged exposure to high concentrations of asbestos fibers in the air. Bronchitis is an inflammation of the bronchi.