The periosteum, endosteum, and Haversian canals would be the resources of pluripotent mesenchymal stem cells that initiate the development in the healing tissues. The bridging callus found on radiographs mostly arises in the periosteum. An MRI can create specific images of the bones and comfortable tissue. It is one of https://www.theorthopaedicandpainpractice.com/what-is-a-long-bone-fracture/