Assertion: periosteum's layer | /r/HasProperty | inner cellular
Facets:
Source sentences:
text: The periosteum comprises of at least two layers, an inner cellular or cambium layer, and an outer fibrous layer .
text: It consists of an outer fibrous layer and inner cellular layer.
text: The periosteum is a highly vascular tissue and is comprised of 2 layers: the inner cellular or cambium layer that contains numerous osteoblasts and osteoprogenitor cells  and an outer fibrous layer composed of dense collagen fibre and fibroblasts and their progenitor cells .