Airway closure.
D000293:Adolescent; D000328:Adult; D000402:Airway Obstruction / Q000209:etiology* / Q000503:physiopathology; D000768:Anesthesia, General / Q000009:adverse effects; D000818:Animals; D001784:Blood Gas Analysis; D002648:Child; D002675:Child, Preschool; D005652:Functional Residual Capacity; D006801:Humans; D000860:Hypoxia / Q000209:etiology* / Q000503:physiopathology; D007223:Infant; D008176:Lung Volume Measurements; D011312:Pressure; D012123:Pulmonary Ventilation; D014109:Total Lung Capacity