Stratified columnar epithelium
Description: several cell layers; basal cells usually cuboidal; superficial cells elongated and columnarFunction: protection, secretionLocation: Rare in the body; small amounts in male urethra and in large ducts in some glands
Stratified columnar epithelium is a type of tissue that is composed of multiple layers of column-shaped cells. This type of tissue is found lining certain organs of the body, including the male urethra, the pharynx, and the cervix, as well as in some glands and ducts.
The main function of stratified columnar epithelium is to protect underlying tissues from damage and abrasion. The numerous layers of cells provide a strong and durable barrier against mechanical stress and abrasion.
Additionally, the columnar shape of the cells allows for efficient secretion or absorption of substances across the tissue. This is because the elongated shape increases the surface area of the tissue, which in turn increases the amount of material that can be transported across it.
Overall, stratified columnar epithelium is an important tissue for protecting and regulating the functions of certain organs in the body.
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