Select the correct statement regarding epithelia.
A) Simple epithelia form impermeable barriers.
B) Stratified epithelia are present where protection from abrasion is important.
C) Stratified epithelia are tall, narrow cells.
D) Pseudostratified epithelia consist of at least two layers of cells stacked on top of one another.

Question

Quizplus · Accepted Answer

Stratified epithelia are present in areas that are subjected to mechanical or chemical stresses, such as the skin and lining of the mouth and esophagus. They provide protection against abrasion, dehydration, and invasion by microorganisms. Simple epithelia, on the other hand, allow for exchange of materials between the internal and external environments. Pseudostratified epithelia appear to have multiple layers due to differences in cell height, but they are actually a single layer of cells.

Select the Correct Statement Regarding Epithelia