In 1909, Western Union and ADT came under the control of American Telephone & Telegraph Company (AT&T). ADT began to expand into new areas, such as fire alarms and security alarms between 1910 and 1930, but was kept separate from AT&T's Holmes alarm business. ADT became a publicly owned company in the 1960s.
It has moist membranes. Many, but not all (urinary), secrete mucous. Serous: Lines open body cavities that are closed to the exterior body surface. composed of simple squamous epithelium resting on thin layer of areolar connective tissue.
Epithelia are a sheet of cells that line almost all body surfaces (skin, intestine, lung, body cavities), form the functional units of secretory glands, and line the inner surface of blood and lymphatic vessels. List the junctional complexes that hold epithelial cells together and their primary functions. 2  List the functions of the basement membrane and how epithelial cells attach to the basement membrane.