Nasal Cavity > Nose

We have an external and internal nose; the interior is called the nasal cavity and is divided in to a left and right side by the nasal septum.

The respiratory mucosa which lines the walls of the nasal cavity contains small, hair-like cilia. These move in a wave-like motion, moving mucus to the back of the throat where it is swallowed. Dust, bacteria, and other chemicals get trapped in the mucus and are denatured by stomach acid.


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