Assertion: epithelium's surface | /r/HasProperty | external
Facets:
Source sentences:
text: Simple epithelium has a single cell layer and it mostly lines the internal surfaces, while compound epithelium has multiple cell layers and it lines the external surfaces and distensible internal surfaces.
text: Simple epithelium has a single cell layer and it mostly lines the internal surfaces, while compound epithelium has multiple cell layers and it lines the external surfaces and distensible internal surfaces.
text: 2) Always has one free (apical) surface open to outside the body or inside (cavity) an internal organ.