Assertion: epithelium's layer | /r/AtLocation | the basement membrane
Facets:
Source sentences:
text: This layer of cells are attached to the basement membrane, however not all the cells reach the free surface.
text: Cells are found in a single layer attached to the basement membrane.
text: Stratified epithelia range from 2 to 20 or more layers of cells, with some cells resting directly on others and only the deepest layer attached to the basement membrane.