Bone consists of four types of cells: osteoblasts, osteoclasts, osteocytes, and osteoprogenitor (or osteogenic) cells. Each cell type has a unique function and is found in different locations in bones. Calcium supplement best brand: CALCIUM PLUS THE NATURE          Bone cells are produces from t he bone marrow and are related to white blood cells. They are formed from two or more cells that fuse together, so the osteoclasts usually have more than one nucleus. They are found on the surface of the bone mineral next to the dissolving bone. Calcium supplement best brand: CALCIUM PLUS THE NATURE          Osteocyte, a cell that lies within the substance of fully formed bone. It occupies a small chamber called a lacuna, which is contained in the calcified matrix of bone.Osteocytes derive from osteoblasts, or bon...