8 Epithelial Types

Simple Squamous Epithelium

A single layer of flat cells primarily involved in rapid transport and diffusion, secretes serous fluids; found in lungs, kidney tubules, blood vessels, and serous membranes.

Simple Cuboidal Epithelium

A single layer of cuboid-shaped cells responsible for absorption and secretion; found in glands, kidney tubules, bronchioles, and liver.

Simple Columnar Epithelium

A single layer of column-shaped cells that function in absorption, secretion, and movement; found in digestive lining, some kidney tubules, and uterus.

Pseudostratified Columnar Epithelium

A single layer of columnar cells that appear stratified, functions to secrete and move mucus; located in the respiratory tract and part of the male urethra.

Stratified Squamous Epithelium

Multiple layers of flat cells that provide resistance to abrasion and protection from pathogens; found in the skin, esophagus, vagina, and anal canal.

Stratified Cuboidal Epithelium

Multiple layers of cuboid cells mainly involved in secretion; found in large glands, such as sweat glands and ovaries.

Stratified Columnar Epithelium

Rare type of epithelium consisting of multiple layers of columnar cells; found in areas like the male urethra.

Urothelium (Transitional Epithelium)

Specialized epithelium that stretches and protects from urine; located in parts of the kidney, ureter, bladder, and portion of the urethra.