Epithalial Tissue Columnar Epithelia

Question 1

Describe Simple Columnar Epithelia:

Answer 1

Single layer of TALL(columnar) cells

Inner linings of gastrointestinal tract

(Stomach, small/large intestines)

Mucous Cells sceretiom enhances the digestive process and protects the epithelium from digestive chemicals

Question 2

Describe Pseudostratified Columnar:

Answer 2

Appears stratified but is NOT because all the cells rest on the basal lamina

Inner lining of trachea and large airways in lung

Cilia:hair like structures that beat rhythmically to move substances across the surface

Mucous cells

Question 3

Describe Stratified Columnar:

Answer 3

2 or more layers or cells, ONLY the surface layer is columnar

Large ducts of salivary glands and pancreas