MICROANATOMY

Detailed explanation-1: -Columnar epithelial cells are taller than they are wide: they resemble a stack of columns in an epithelial layer, and are most commonly found in a single-layer arrangement.

Detailed explanation-2: -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-3: -Cuboidal epithelium is composed of cells whose height and width are approximately the same (cube shaped). Columnar epithelium is composed of cells taller than they are wide.