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glossary:endothelium [2012/10/16 14:40] (current)
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|+||(1) Relating to the endothelium, the layer of flat [[cell]]s lining the closed spaces of the body such as the inside of [[blood vessels]], [[lymphatic vessels]], the [[heart]], and body cavities. |
|+||By contrast, the outside layer of cells that covers all the free, open surfaces of the body including the [[skin]] and [[mucous membranes]] that communicate with the outside of the body is called the [[epithelium]]. |
|+||The word "endothelium" is derived from the Greek "endon," within + G. "thele," nipple, so it literally means within the nipple.|