Conditioning of Inhaled Air:
{"Image DocumentName": "Conditioning of Inhaled Air:", "Image ImageDescription": "Several things happen to the air on its journey into the alveoli. The air is: 1. Cleansed of debris in a 2 part process. The initial cleaning is by the nose hairs and. mucous in the nasal passageways. The second part of the process occurs in the trachea. and bronchi which are both lined with mucous and cilia. Any material other than the. gases of the inhaled air will get caught in the mucous. The cilia (microscopic protein. filaments) are in constant motion, beating the debris-laden mucous up towards the. pharynx. When this material is detected at the back of the mouth, it is swallowed or. coughed up and expectorated (spit out).  Note: cilia do not filter! 2. Adjusted to body temperature (~37 degrees Celsius). The more contact the air has. with moist tissues at 37o C, the closer the temperature of the inhaled air gets to body. temperature. By the time the air arrives at the alveoli there is no difference in its. temperature than that of the surrounding tissues. 3. Adjusted to 100% humidity. The air in the lungs is saturated with water. One of the. things that happens to inhaled air is that as it passes over the mucous passageways, it. becomes saturated with water.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}