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).
Epithelial cells are the individual cells of an epithelium, which is a layer of cells forming the surface of a structure or an inner lining. For example, there is an epithel â¦ ium lining the alimentary canal (gut), and another lining the alveoli of the lungs.or example the epethelial cell layer are the cells that coat the intetestine wall, and thus absorb nutrients and the the endothelial cells are the cells that face the blood,and release those nutrients into the blood.