Question

Epithelial tissue is named for the shape of the cells and number of layers that comprise the tissue. Define or draw what each term means with respect to the tissue.

Cell shape: Squamous -

Cuboidal -

Columnar –

Number of layers:

Simple –

Stratified–

Pseudostratified–

Answer 1

Cell shape:

Squamous - Cells are flat and wider than their height.

Cuboidal - Cells are cubical in shape. Height and width are approximately the same.

Columnar – Cells are taller than wider and in column-shape.

Number of layers:

Simple –   Single layer of cells and every cell in direct contact with the basement membrane

Stratified– Multilayered. Cells are flatten as the layers become more apical and though.

Pseudostratified– Single layer of cells. Cells can be ciliated or non-ciliated.