Bone piays a pivotaE role in storing calciurri and phosphate in vertebrates. This tissue is maintained by the balance of bene formatien and bene resorption. Osteoblast-tineage c lls, consisting of osteoblasts, esteocytes and bone lining cells, are engaged in bone formation. Bene resorption is mediated by osteoclasts. Recent research revealed that receptor activator ofNF-KB (RANK)-RANK ligand (R...