The tissue lining the small intestine of the digestive tract is called
A)stratified squamous epithelium.
B)simple squamous epithelium.
C)stratified columnar epithelium.
D)simple columnar epithelium.
E)None of the answers are correct.

Question

Quizplus · Accepted Answer

Simple columnar epithelium is best suited for the tissue lining of small intestine. This type of tissue provides a large surface area for absorption, has specialized cells for absorption, and is thick enough to provide protection for the underlying tissues. Stratified squamous epithelium is found in areas exposed to physical and chemical stress, such as the skin and the esophagus, and would not be suitable for the delicate lining of the small intestine. Simple squamous epithelium is found in areas of diffusion, such as the lungs and blood vessels, and would not be suitable for absorbing nutrients. Stratified columnar epithelium is rare in the human body and is found in the male urethra and the pharynx, and would not be suitable for the small intestine.

The Tissue Lining the Small Intestine of the Digestive Tract