The two main described osteoprogenitor niches are the periosteum, which overlays all flat bones, and the suture mesenchyme, only present in the skull between calvarial bones." To gain insight into ...

As far back as 1873, Kölliker 1 observed the existence of osteoclasts in the periosteum of normal bone. Lacroix 2 also made several references to the presence of periosteal osteoclasts during ...