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Category: Religion
Word Count: 558
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Emphysema Research Paper
Emphysema is a condition in which there is over-inflation of structures in the lungs known as alveoli or air sacs. This over-inflation results from a breakdown of the walls of the alveoli, which causes a decrease in respiratory function. As the walls of the alveoli break down, enlarged airspaces known as bullae are formed within the lung. In addition, the alveolar walls no longer act to hold the bronchial tubes open.

The normal lung maintains a balance between two classes of chemicals with o
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