Assertion: epithelium's surface | /r/CapableOf | face the lumen
Facets:
Source sentences:
text: This means the basal surface of the epithelial cells are attached to the basal lamina and the apical surface of the cells face the lumen.
text: The basal surface of both epithelial cells and the endothelial cells are attached to the basement membrane while the apical surface faces the lumen.