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Asthma illustration | by National Institutes of Health (NIH)
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Asthma illustration

Figure A shows the location of the lungs and airways in the body. Figure B shows a cross-section of a normal airway. Figure C shows a cross-section of an airway during asthma symptoms.

 

More information on asthma: www.nhlbi.nih.gov/health/health-topics/topics/asthma

 

Credit: National Heart, Lung and Blood Institute, National Institutes of Health

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Uploaded on March 8, 2017