Stratified squamous epi(复层扁平上皮) os Basal cuboidal cells---polygonal -flattened Distribution: os non-keratinized: mouth, pharynx, esophagus, urethra and vagina ☆ keratinized:skin 0 台)11 ❖ Basal cuboidal cells---polygonal -----flattened Distribution: ❖ non-keratinized: mouth, pharynx, esophagus, urethra and vagina ❖ keratinized: skin Stratified squamous epi.(复层扁平上皮)