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Blood and Gas Exchange (Oxygen enters through the external nares and nasal…
Blood and Gas Exchange
Oxygen enters through the external nares and nasal vestibule
by human inhalation
travels through the nasal concha
past internal nares and nasopharynx
through oropharynx
the epiglottis opens to allow the O2 through the glottis
past the larynx
here lies the following structures
adam's apple
thryroid cartilage
cricoid cartilage
to the trachea
the O2 travels to the lungs (lying in the pleural cavity)
from the trachea, it travels to the next sections of the Bronchi
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between here holds the palatine tonsil
this is above the soft and hard palate
mucosa lines the area to protect it from abrasion