two cell types are found in the mitotic compartment of a secondary cartilage of the mandible ( condylar , angular and coronoid cartilages ) and of the maxillary ( cartilage of the sagital suture ) : - the `` '' skeletoblast '' '' , which bears a spontaneous tendancy to differentiate into an osteoblast , but which differentiates in vivo into a chondroblast ;
C0007301
cartilage
C0225368
a chondrobla