Question

The epithelium found in the inner lining of the stomach, intestine and their glands is ___________
A. Columnar
B. Cuboidal
C. Squamous
D. Cubical

Answer 1

Hint: The epithelium that is found in the stomach has a column-like shape. This type of epithelium cell is found in the organs of the digestive system.

Complete answer: A single layer of columnar cells that are attached to the basement membrane, with oval-shaped nuclei present in the basal region is known as a columnar epithelial cell. In humans, simple columnar epithelium cells are mostly seen in the digestive tract including organs like the stomach, small intestine, and large intestine.
It is also seen in the uterus.
Simple columnar epithelium can be divided into two categories – ciliated and non-ciliated or glandular.
The ciliated columnar epithelium has tiny hairs that help in the movement of mucus in the respiratory tract.

Additional information: A simple cuboidal epithelium is made up of a single layer of epithelial cells. It appears to be square-shaped in structure.
It has large, rounded, centrally located nuclei. All the cuboidal cells are directly attached to the basement membrane.
A simple squamous epithelium is a monolayer of flat cells.
It has contact with the basal lamina of the epithelium. This epithelium often permits the passing of small molecules that are needed to be passed quickly through membranes via filtration or diffusion.

So here the correct answer is option A. Columnar.

Note: Columnar epithelium cells are generally seen in stomach, oesophagus, trachea, lungs. Cuboidal epithelial cells are generally seen in the ovaries.
The squamous epithelial cells are found in the capillaries, alveoli, glomerulus, etc.