Chapter 3, Problem 2CT

Summary Introduction

To review:

Formulate a hypothesis for the smoker’s cough in the absence of cilia in the respiratory epithelium.

Introduction:

The respiratory epithelium, right from the nasal cavity, is lined with small cilia. The cilia are present on the pseudostratified columnar epithelium along with the goblet cells. The majority of bronchioles in the lungs is lined with the simple cuboidal epithelium. However, the lining of the alveoli is composed of simple squamous epithelium. The cilia on the respiratory epithelium help in the movement of the mucus.