helia differs; each epithelium is given two names 1. The number of cell layers present and 2. Describes the shape of the cell.
             Simple epithelium is a single layer of cells which functions include diffusion and filtration. The location of this cell is covering visceral organs, linings of lumina and body cavities.
             Simple squamous epithelium (refer to fig1, p5) is a single layer of flattened, tightly bound cells which are located in capillary walls; alveoli of lungs; covering visceral organs, lining of body cavities. The function of this tissue is diffusion and filtration.
             Simple cuboidal epithelium (refer to fig2, p5) is a single layer of cube shaped cells located on the surface of ovaries; linings of renal tubules, salivary ducts, and pancreatic ducts. Its functions are excretion, secretion and absorption.
             Simple columnar epithelium is a "single layer of nonciliated, tall, columnar shaped cell located on the lining of GI tract (refer to fig3, p6). This tissue protects secrets and absorbs"(Marieb, E.N.1998, p112).
             Simple ciliated columnar epithelium is a "single layer of ciliated, columnar shaped cells, situated lining the lumen of the uterine (refer to fig4, p7), functioning the transportative role through ciliary motion"(Marieb, E.N, 1998,p112).
             Pseudostratified ciliated columnar epithelium is a "single layer of ciliated, irregular cells that protect, secret. This particular tissue is located on the lining of respiratory passageways"(Kent & Van De & Fox, 1995,p116) (refer to fig5 p8). Coughing, sneezing, or simply clearing the throat are protective reflex mechanisms for clearing the respiratory passages of obstructions or inhaled particles that have been trapped in the mucus along the ciliated lining.
             Stratified epithelia have "two or more layers of cells that protect, strengthen or distension. This tissue is located on the epidermal layer of the skin; linings of b
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