Assertion: epithelium's cell | /r/HasProperty | a layer of cells
Facets:
Source sentences:
text: Epithelial cells are the individual cells of an epithelium, which is a layer of cells forming the surface of a structure or an inner lining.
text: The cells in pseudostratified columnar epithelial tissue mimic stacked layers of columnar cells, but if one looks closely, the bottom of each cell connects with the basement membrane, so there is actually only one layer of cells.