The Nasal Cavities are Lined With

Question

The nasal cavities are lined with:
A)stratified squamous epithelium as a barrier to pathogens
B)ciliated epithelium to sweep mucus anteriorly
C)stratified squamous epithelium to prevent loss of water
D)ciliated epithelium to sweep mucus posteriorly

Accepted Answer

The nasal cavities are lined with ciliated epithelium, which helps sweep mucus and any trapped particles or pathogens posteriorly toward the pharynx, where it can be swallowed or expectorated. Stratified squamous epithelium is found in areas exposed to mechanical stress, such as the oral cavity, and would not be effective in trapping or removing particles.