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COPD
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During normal respiration, air travels through the nose, down the trachea, and into smaller and smaller airways called bronchi. The bronchi divide into bronchioles and finally into tiny grape-like clusters of thin, fragile sacs called alveoli.
Chronic obstructive pulmonary disease, or COPD, refers to a group of diseases that cause airflow blockage and breathing-related problems.
Emphysema is a disease that destroys the alveoli and the alveolar ducts. As your lungs lose elasticity, the alveoli rupture, ... more
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