This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Asthma attackillustration NIH. en Figure shows the location of the lungs and airways in the body Figure shows crosssection of normal airway Figure shows crosssection of an airway during asthma symptoms nhlbi nih gov United StatesNational Institute of Health National Heart Lung Blood Institute PDUSGov Uploaded with Asthma Pulmonary