U.S. Postal Inspectors are law enforcement agents, much like police officers and detectives, who maintain the integrity of the U.S. postal system. To become a postal inspector you must be able to fulfill certain duties and meet specific requirements.
epithelial cell, any one of several cells arranged in one or more layers that form part of a covering or lining of a body surface.The cells usually adhere to one other along their edges and surfaces. One surface is free, and the other rests on a noncellular basement membrane.See also epithelial tissue.ny of the cells forming the cellular sheets that cover surfaces, both inside and outside the body. Epithelial cells are closely packed and take on polyhedral shapes, from tall (columnar) through squat (cuboidal) to flat (squamous).
EPITHELIUM â¢ epithelium is a tissue composed of a layer of cells.â¢ Epithelium lines both the outside (skin) and the inside cavities and lumen of bodies.â¢ The outermost layer of our skin is composed of dead stratified squamous epithelial cells, as are the mucous membranes lining the inside of mouths and body cavities.unctions of Epithelial Tissue â¢ Protection â¢Epithelial cells from the skin protect underlying tissue from mechanical injury, harmful chemicals, invading bacteria and from excessive loss of water. â¢ Sensation â¢Sensory stimuli penetrate specialised epithelial cells.