noun Télécharger 🔗Partager Épithélium A membranous tissue composed of one or more layers of cells which forms the covering of most internal and external surfaces of the body and its organs: internally including the lining of vessels and other small cavities, and externally being the skin. Examples : "The doctor examined the tissue sample to see if the epithelium was healthy. " Le médecin a examiné l'échantillon de tissu pour voir si l'épithélium était sain. medicine physiology anatomy organ body biology science Chat avec IAJeu de vocabulairePratiquer la lecture