Assertion: periosteum's osteoblast | /r/CapableOf | deposit bone matrix
Facets:
value: over the remnants of calcified cartilage
type: TRANSITIVE-OBJECT
value: in the primary ossification center
type: LOCATION
Source sentences:
text: In the primary ossification center, osteoblasts begin to deposit bone matrix over the remnants of calcified cartilage, forming spongy bone trabeculae.