Chapter 4.3, Problem 12AYP

Summary Introduction

To explain:

The changes in cell shape and number of cell layers in transitional epithelium as it is stretched and its location in the body.

Introduction:

The epithelial tissues are found on the body's outer surface and line the organs, vessels, and cavities. Epithelial cells constitute a thin cell layer known as the endothelium that adjoins the internal tissue lining of organ such as brain, lung, skin and heart. The cells are categorized by the number and structure of the cells on the surface. There are four epithelium tissues according to the number of cell layers- simple, stratified, and pseudo-stratified epithelium. There are three kinds of epithelium- squamous, cuboidal, and columnar epithelium based on the shape of the epithelial cells.