GENERAL HISTOLOGY

Detailed explanation-1: -All epithelia share some important structural and functional features. This tissue is highly cellular, with little or no extracellular material present between cells. Adjoining cells form a specialized intercellular connection between their cell membranes called a cell junction.

Detailed explanation-2: -Epithelial tissue consists of three types of cells – squamous, cuboidal and columnar.

Detailed explanation-3: -Epithelial cells are the outermost layer of cells that cover the surface of the body. The basement membrane is a non-cellular skinny fibrous membrane on which all epithelia rest. The basement membrane is the fusion of two laminae.

Detailed explanation-4: -Carcinoma Carcinomas, malignancies of epithelial tissue, account for 80 to 90 percent of all cancer cases since epithelial tissues are most abundantly found in the body from being present in the skin to the covering and lining of organs and internal passageways, such as the gastrointestinal tract.