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Epithelium
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Tissue lining the surfaces of organs in animals
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Epithelium or epithelial tissue is a thin, continuous, protective layer of cells with little extracellular matrix. An example is the epidermis, the outermost layer of the skin. Epithelial (mesothelial) tissues line the outer surfaces of many internal organs, the corresponding inner surfaces of body cavities, and the inner surfaces of blood...

Instance of
class of anatomical entity
Subclass of
Tissue (biology)
particular anatomical entity
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