title: Physiology of changes in pressure.
mesh_terms: D000337:Aerospace Medicine; D000531:Altitude; D001274:Atmospheric Pressure; D003665:Decompression Sickness; D004242:Diving; D018504:Ecological Systems, Closed; D006801:Humans; D000860:Hypoxia / Q000503:physiopathology; D009584:Nitrogen; D010100:Oxygen / Q000633:toxicity; D005082:Physical Exertion; D012119:Respiration; D014474:Unconsciousness
chemical_list: D009584:Nitrogen; D010100:Oxygen