Assertion: cementum's fiber | /r/HasProperty | extrinsic
Facets:
Source sentences:
text: This cementum contains cells but has no extrinsic fibers.
text: The fibers present are intrinsic fibers which are secreted by the cementoblasts.
text: the presence of fibers (intrinsic/extrinsic fibers) or their absence (afibrillar cementum).