Question

Pseudostratified epithelium occurs in:
A. Oesophageal wall
B. Bronchiole lining
C. Urinary bladder
D. Rectal wall

Answer 1

Hint:- When we talk about pseudostratified epithelium, we can say that the ciliated pseudostratified columnar epithelia are the sort of respiratory epithelium. a category of epithelium that, though encompassing only a single layer of cells is called a pseudostratified epithelium. It typically has its cell nuclei to be found in a manner indicative of stratified epithelia.

Complete answer:
It is normally found in the linings of the trachea as well as the upper respiratory tract. In addition, the non-ciliated pseudostratified columnar epithelia are said to be positioned in the prostate and gloomy part of male vas deferens.
However, in the linings of the trachea as well as the upper respiratory tract, the Ciliated pseudostratified columnar epithelia are said to be found. The main function of such a type of Pseudostratified epithelium is to keep the nasal passage free of irritant constituent parts by trapping them.
We can say that the lining of the oesophageal and rectal wall is said to be covered by stratified squamous epithelium. In addition, the transitional epithelium is the one that lines the wall of the urinary bladder.

Note:- The nucleus present in such types of cells is said to be disposed at different levels. Thus, it creates the illusion of cellular stratification. However, on the other hand, not all the ciliated cells get to extend to the luminal surface. Many of such types of the cells are proficient of cell division and they provide the replacements for those cells which are lost or damaged.