MICROANATOMY

Detailed explanation-1: -Simple columnar epithelium is a single layer of columnar epithelial cells which are tall and slender with oval-shaped nuclei located in the basal region, attached to the basement membrane. In humans, simple columnar epithelium lines most organs of the digestive tract including the stomach, and intestines.

Detailed explanation-2: -Columnar epithelial cells have a rectangular or column shape, meaning that they are taller than they are wide. The nucleus is also elongated, having a long oval shape.

Detailed explanation-3: -Cuboidal Epithelia They are most commonly found in a single layer representing a simple epithelia in glandular tissues throughout the body where they prepare and secrete glandular material.