Most epithelial tissue is described with two names. The first name describes the number of cell layers present and the second describes the shape of the cells. For example, simple squamous epithelial tissue describes a single layer of cells that are flat and scale-like in shape.

What does it mean if an epithelial tissue is named Simple?

A simple epithelium is an epithelial tissue made up of only one layer of epithelial cells. These cells are in direct contact with the basement membrane. And often the layer underneath the basement membrane is a connective tissue.

What are epithelial cells called?

Epithelial cells come in different shapes depending on where in the body they're found. These shapes are called squamous, cuboidal, columnar, and ciliated columnar. Squamous epithelial cells are flat and are usually found lining surfaces that require a smooth flow of fluid, such as your blood vessels.