Diseases and Injuries
>> External Causes
>> HCPCS Alpha
>> Drug Directory
A sudden, audible expulsion of air from the lungs through a partially closed glottis, preceded by inhalation. It is a protective response that serves to clear the trachea, bronchi, and/or lungs of irritants and secretions, or to prevent aspiration of foreign materials into the lungs.
|The National Library of Medicine (terms and conditions)|