Question

Layer of columnar cells with uneven appearance and lining trachea is?

• A. Brush border epithelium
• B. Pseudostratified epithelium
• C. Stratified epithelium
• D. Ciliated epithelium

Answer 1

The correct option is B Pseudostratified epithelium

The tracheal lining contains pseudostratified columnar epithelial cells having cilia which are motile and their synchronous movement helps in the movement of fluid (here mucous).

On the other hand, brush border epithelium is found in the intestine. The stratified epithelium is found in the conjunctiva of eyes etc and the ciliated epithelium is found in respiratory tracts. Hence the correct answer is B.