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stratified columnar epithelium
Stratified columnar epithelium is a rare type of epithelial tissue composed of column shaped cells arranged in multiple layers.
Stratified columnar epithelia are found in the ocular conjunctiva of the eye, in parts of the pharynx and anus, the female's uterus, the male urethra and vas deferens. Also found in Lobar ducts in salivary glands.
The cells function in secretion and protection.
In simple terms, we can say that the upper and lowermost layer of cells are columnar in shape. The middle layer contains cuboidal cells. It forms the lining of respiratory tract, ureter, ovi duct ,etc.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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