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.
Unformatted text preview: Serous membranes : moist epithelial membranes line body cavities that do not open to the outside and that cover organs in that cavity composed of simple squamous ET which lies on top of subserous fascia consist of two layers, the parietal layer and the visceral layer 67.