Epithelial Cells
Epithelial cells are specialized cells that form the surface layers of organs and body cavities—including the skin, the walls of blood vessels and hollow organs, and tissue linings—in both animals and plants. Epithelial cells play an important role in protecting underlying cells and organs from mechanical damage or infection, and they help regulate the movement of molecules and ions through the body. Because of their numerous functions, epithelial cells are essential for normal physiology and homeostasis. They are also a vital source of information for scientists in the fields of stem cell research and cancer biology.
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