NEET PG DENTAL EXAM

Detailed explanation-1: -Pseudostratified columnar epithelium is a type of epithelium that appears to be stratified but instead consists of a single layer of irregularly shaped and differently sized columnar cells. In pseudostratified epithelium, nuclei of neighboring cells appear at different levels rather than clustered in the basal end.

Detailed explanation-2: -Respiratory epithelium is ciliated pseudostratified columnar epithelium found lining most of the respiratory tract; it is not present in the larynx or pharynx.

Detailed explanation-3: -Stratified: A stratified epithelium is made up of more than one layer of cells. Pseudostratified: A pseudostratified epithelium is made up of closely packed cells that appear to be arranged in layers because they’re different sizes, but there’s actually just one layer of cells.

Detailed explanation-4: -An example of stratified epithelium is the skin, which contains multiple layers of squamous cells. Pseudostratified epithelium is a single layer of cells that histologically appears as multiple layers because the nuclei are arranged at different heights.