Question

Which one of the following types of cell is involved in making of the inner walls of blood vessels?

• A. Cuboidal epithelium
• B. Columnar epithelium
• C. Stratified epithelium
• D. Squamous epithelium

Answer 1

The correct option is D Squamous epithelium

Cuboidal epithelium

Cuboidal epithelium is involved in secretion, absorption and excretion.
Usually found in the inner lining of nephrons, endocrine organs.

Columnar epithelium

Columnar epithelium helps primarily in absorption of substances and is found in the inner lining of the small intestine and stomach. It can be glandular in function and may contain cilia.

Squamous epithelium

Single thin layer of flattened cells that helps in easy diffusion of gases and substances, which frequently take place in blood vessels are called squamous epithelium.

Stratified epithelium

Stratified epithelium is made up of layers of cells. Usually found where there is more wear and tear in the body like the skin.

Final answer: (c) Squamous epithelium.