In asthma, the airways that carry air to the lungs (bronchial tubes) are inflamed. This can narrow the airways, causing shortness of breath and making it difficult to breathe.
Current as of: April 19, 2013
Author: Healthwise Staff
Medical Review: E. Gregory Thompson, MD - Internal Medicine & Donald Sproule, MDCM, CCFP - Family Medicine & Rohit K Katial, MD - Allergy and Immunology
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