write about Asthma and Emphysema
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Asthma : It is a difficulty in breathing causing wheezing due to inflammation of bronchi and bronchioles.
Emphysema : It is a chronic disorder in which alveolar walls are damaged due to which respiratory surface is decreased. One of the major causes of this is cigarette smoking.
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Answer: Asthma is a spastic and inflammatory disease of the airways that causes reversible obstruction of the bronchial tubes. It usually responds to treatment. Emphysema is a disease of the lung tissue, especially the alveoli (air sacs) at the end of the bronchial tubes. Emphysema results from destruction of these alveoli.
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