Assertion: eye's cell | /r/HasProperty | derived
Facets:
value: from the walls of the sac
type: LOCATION
Source sentences:
text: A cartilaginous capsule forms around the olfactory organ from cells believed to have been derived from the walls of the sac itself, and thus it is ectodermal in origin.
text: The cells of the inner stratum proliferate and form a layer of considerable thickness from which the nervous elements and the sustentacular fibers of the retina, together with a portion of the vitreous body, are developed.
text: The cells of the dermis are derived from mesoderm and neural-crest cells.