Epithelial tissue is derived from which germ layer?

Epithelial cells are known to form the lining of the skin, ducts and lumen of all the organs. They cannot be differentiated on the basis of what germ layer forms them. It would be an incorrect basis to differentiate or classify them. For example,. read more

Epithelial cells are known to form the lining of the skin, ducts and lumen of all the organs. They cannot be differentiated on the basis of what germ layer forms them. read more

Epithelial tissues are derived from all of the embryological germ layers: [citation needed] from ectoderm (e.g., the epidermis); from endoderm (e.g., the lining of the gastrointestinal tract); from mesoderm (e.g., the inner linings of body cavities). read more