http://en.wikipedia.org/wiki/Anatomy_of_the_human_nose
At the vestibule, the human nose is lined with a mucous membrane of squamous epithelium, which tissue then transitions to become columnar respiratory epithelium, a pseudo-stratified, ciliated (lash-like) tissue with abundant seromucinous glands, which maintains the nasal moisture and protects the respiratory tract from bacteriologic infection and foreign objects.
At the vestibule, the human nose is lined with a mucous membrane of squamous epithelium, which tissue then transitions to become columnar respiratory epithelium, a pseudo-stratified, ciliated (lash-like) tissue with abundant seromucinous glands, which maintains the nasal moisture and protects the respiratory tract from bacteriologic infection and foreign objects.
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