title: The upper airways. I. Nasal physiology and defense of the lungs.
mesh_terms: D000388:Air; D000397:Air Pollution; D002923:Cilia / Q000502:physiology; D004777:Environment; D006801:Humans; D008168:Lung / Q000033:anatomy & histology / Q000502:physiology*; D008171:Lung Diseases / Q000503:physiopathology; D009305:Nasopharynx / Q000502:physiology; D009666:Nose / Q000033:anatomy & histology / Q000502:physiology* / Q000503:physiopathology; D009668:Nose Diseases / Q000503:physiopathology; D014066:Palatine Tonsil / Q000033:anatomy & histology; D012119:Respiration; D012141:Respiratory Tract Infections / Q000503:physiopathology; D013696:Temperature