The pseudostratified columnar epithelium of the bronchi in smokers may transform into stratified squamous epithelium.This is an example of __________.
A) neoplasia
B) metaplasia
C) atrophy
D) differentiation
E) hyperplasia

Question

Quizplus · Accepted Answer

Metaplasia is the reversible replacement of one differentiated cell type with another. In the case of smokers, the irritation from cigarette smoke can cause the pseudostratified columnar epithelium to transform into stratified squamous epithelium. This change is an example of metaplasia.

The Pseudostratified Columnar Epithelium of the Bronchi in Smokers May