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.
Simple squamous epithelia are seen in many places but mesothelium and endothelium are the most ubiquitous types. Mesothelium is the term applied to the simple squamous epithelium that lines the four coelom-derived cavities: two pleural, pericardial and peritoneal.his epithelium has a thick basement membrane that is a characteristic of the respiratory epithelium. Look for cilia and goblet cells. Cilia may be seen to better advantage in slide 125, a 1.5 thick plastic section of a monkey trachea or large bronchus. Consult your text or atlas for details of their fine structure.