CH. 21 DISEASES OF THE RESPIRATORY TRACT

Some common or well-known disorders: Tobacco use is a respiratory system killer. Know the consequences. Lung cancer – #1 among cancer deaths; 80% from tobacco. Chronic Obstructive Pulmonary Diseases (COPDs) include: emphysema – lungs become less elastic due to build up of scar tissue; and chronic bronchitis – lower respiratory passages ... ................
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