RESPIRATORY SYSTEM

a. Respiratory disorder usually caused by sensitivity to an allergen such as dust, pollen, animals, or foods. b. Stress, overexertion, and infections can also cause an asthma attack. c. Symptoms (1) Occur when bronchospasms narrow openings of bronchioles, mucus production increases, and edema develops in the mucosal lining (2) Dyspnea and wheezing ................
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