This type of epithelia is composed of thin, flattened cells that allow the rapid passage of O₂ and CO₂ in and out of the lungs and of certain blood vessels.
A) exchange
B) transport
C) ciliated
D) protective
E) secretory

Question

Quizplus · Accepted Answer

The characteristics described in the question point to exchange epithelia. These types of epithelia are present in tissues where gases, nutrients or other substances can rapidly diffuse across thin layers of cells. In the case of the lungs, exchange epithelia allow for the efficient exchange of oxygen and carbon dioxide between air and the bloodstream.

This Type of Epithelia Is Composed of Thin, Flattened Cells