Question

Where are the following tissues found and what are there fundamental characteristics -
A) Simple Cuboidal
B) Stratified Cuboidal
C) Simple Columnar
D) Stratified Columnar

Answer 1

A) Simple Cuboidal- Simple cuboidal epithelia are found on the surface of ovaries, the lining of nephrons, the walls of the renal tubules, and parts of the eye and thyroid. On these surfaces, the cells perform secretion and absorption.

B) Stratified Cuboidal- Stratified cuboidal epithelium is a type of epithelial tissue composed of multiple layers of cube-shaped cells. Only the most superficial layer is made up of cuboidal cells, and the other layers can be cells of other types.

C) Simple Columnar- A simple columnar epithelium is a columnar epithelium that is uni-layered. In humans, a simple columnar epithelium lines most organs of the digestive tract including the stomach, small intestine, and large intestine. Simple columnar epithelia line the uterus.Non-ciliated types are found in the digestive tract. Ciliated types are found within bronchioles of the respiratory tract and in the oviduct of the female reproductive tract.

D) Stratified Columnar- Stratified columnar epithelium is a rare type of epithelial tissue composed of column-shaped cells arranged in multiple layers. Stratified columnar epithelia are found in the conjunctiva of the eye, in parts of the pharynx, anus, the uterus, and the male urethra and vas deferens. It is also found in the lobar ducts in salivary glands.
The cells function in secretion and protection.