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Unformatted text preview: d. often leads to respiratory failure 2. obstructive emphysema - usually results from smoking a. enlargement & deterioration of alveoli b. loss of elasticity of the lungs c. "barrel chest" from bronchiole opening during inhalation & constriction during exhalation 3. chronic bronchitis - mucus/inflammation of mucosa B. Lung Cancer 1. squamous cell carcinoma (20-40%) - epithelium of the bronchi and bronchioles 2. adenocarcinoma ( 25-35 %) - cells of bronchiole glands and cells of the alveoli 3. small cell carcinoma (10-20%) - special lymphocyte-like cells of the bronchi 4. 90% of all lung cancers are in people who smoke or have smoked...
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- Fall '10
- Chronic obstructive pulmonary disease, Squamous cell carcinoma, altitude effects