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- https://bio.libretexts.org/Bookshelves/Microbiology/Microbiology_(OpenStax)/22%3A_Respiratory_System_Infections/22.01%3A_Anatomy_and_Normal_Microbiota_of_the_Respiratory_TractThe upper respiratory tract is colonized by an extensive and diverse normal microbiota, many of which are potential pathogens. Few microbial inhabitants have been found in the lower respiratory tract,...The upper respiratory tract is colonized by an extensive and diverse normal microbiota, many of which are potential pathogens. Few microbial inhabitants have been found in the lower respiratory tract, and these may be transients. Members of the normal microbiota may cause opportunistic infections, using a variety of strategies to overcome the innate nonspecific defenses (including the mucociliary escalator) and adaptive specific defenses of the respiratory system.
- https://bio.libretexts.org/Courses/Clinton_College/BIO_403%3A_Microbiology_(Neely)/10%3A_Infectious_Diseases_affecting_the_Gastrointestinal_Tract_and_Respiratory_System/10.04%3A_Respiratory_System_Infections/10.4.01%3A_Anatomy_and_Normal_Microbiota_of_the_Respiratory_TractThe upper respiratory tract is colonized by an extensive and diverse normal microbiota, many of which are potential pathogens. Few microbial inhabitants have been found in the lower respiratory tract,...The upper respiratory tract is colonized by an extensive and diverse normal microbiota, many of which are potential pathogens. Few microbial inhabitants have been found in the lower respiratory tract, and these may be transients. Members of the normal microbiota may cause opportunistic infections, using a variety of strategies to overcome the innate nonspecific defenses (including the mucociliary escalator) and adaptive specific defenses of the respiratory system.
- https://bio.libretexts.org/Courses/Folsom_Lake_College/BIOL_440%3A_General_Microbiology_(Panoutsopoulos)/10%3A_Infectious_Diseases_affecting_the_Gastrointestinal_Tract_and_Respiratory_System/10.04%3A_Respiratory_System_Infections/10.4.01%3A_Anatomy_and_Normal_Microbiota_of_the_Respiratory_TractThe upper respiratory tract is colonized by an extensive and diverse normal microbiota, many of which are potential pathogens. Few microbial inhabitants have been found in the lower respiratory tract,...The upper respiratory tract is colonized by an extensive and diverse normal microbiota, many of which are potential pathogens. Few microbial inhabitants have been found in the lower respiratory tract, and these may be transients. Members of the normal microbiota may cause opportunistic infections, using a variety of strategies to overcome the innate nonspecific defenses (including the mucociliary escalator) and adaptive specific defenses of the respiratory system.
- https://bio.libretexts.org/Courses/Portland_Community_College/Cascade_Microbiology/23%3A_Appendix_C_-_Human_Anatomy/23.2%3A_Anatomy_and_Normal_Microbiota_of_the_Respiratory_TractThe respiratory system can be conceptually divided into upper and lower regions at the point of the epiglottis, the structure that seals off the lower respiratory system from the pharynx during swallo...The respiratory system can be conceptually divided into upper and lower regions at the point of the epiglottis, the structure that seals off the lower respiratory system from the pharynx during swallowing (Figure \PageIndex1). Figure \PageIndex1: (a) The ear is connected to the upper respiratory tract by the eustachian tube, which opens to the nasopharynx. (b) The structures of the upper respiratory tract.
