Classification of Epithelium based on shape
Flat, plate-like: Squamous (found in kidneys, lungs, lymphatic & blood vessels, cavity linings) where high diffusion is needed)
Cube-shaped: Cuboidal (found in glands, kidneys, ovaries; function is secretion and absorption)
Column: Columnar (good for absorption and secretion, especially areas requiring protection, as in digestive tracts; also in gall bladder, ducts, brohchii, uterine tubes, uterus). Ciliated kinds move mucus by ciliary action.