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Chapter 4
Question 31-List several structural and functional characteristics of epithelial tissue
1) The epithelium is a sheet of cells that cover the body or lines a body cavity. It forms a boundary between the different areas. The covering and lining of it forms on the outer layer of the skin, then goes into and lines the cavities that are open, like the cardiovascular digestive system and respiratory systems. It also covers the ventral body cavities organs and walls. The epithelial tissue has many functions. They are to protect, absorb, filter, excrete, secrete, and sense thing. These are all very important to the human body's survival.