The median wage, or midway point between the lowest and highest salary, was $116,010 per year. Twenty-five percent of marketing managers earned less than $83,290 per year while another 25 percent earned more than $155,050.
List five major functions of epithelium in the body, and give examples of each. 1. protection; epithelium covering body surface protects against bacterial invasion and chemical damage. 2. absorption; epithelium specialized to absorb substances lines the stomach and small intestines. 3. filtration; in kidney tubules, epithelium filters (and absorbs and secretes). 4. excretion; Sweat is excreted from the body by epithelial cells in the sweat glands. 5. secretion; In glands, epithelial tissue is specialized to secrete specific chemical substances such as enzymes, hormones and lubricating fluids.
Can be found in the lining of the trachea, most of the upper respiratory tract. There role is to keep mucus and any other debris from entering the lower reaches of the lung tissue by moving in a upward direction. 19. Transitional epithelium is actually stratified squamous epithelium with special characteristics.imple means that there is only one layer of these cells, not as much protection as stratified which indicates several layers of cells. Stratified epithelia are named according to the cells at the apical surface of the epithelial membrane, not those resting on a basement membrane like the simple epithelia.