NEET BIOLOGY

Detailed explanation-1: -Apseudostratified epitheliumis a type ofepitheliumthat, though comprising only a single layer ofcells, has itscell nuclei positioned in a manner suggestive ofstratified epithelia.

Detailed explanation-2: -The nuclei are arranged at different levels in the layer of cells, making it appear as though there is more than one layer. This is called pseudostratified, columnar epithelia.

Detailed explanation-3: -Pseudostratified cells are simple, columnar epithelial cells in which the nuclei lie at different levels. This is due to the varying sizes of cells. Hence it appears to be multi-layered.

Detailed explanation-4: -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-5: -The pseudostratified columnar epithelium is responsible for protecting foreign particles, transport of substances, secretion of mucus, and absorption of excess fluid. The division of the pseudostratified columnar epithelium is based on the presence or absence of cilia.