Called osseous tissue. Bone is composed of specialized connective tissue (collagen) made up of living bone cells (osteocytes) that are embedded in a hard matrix (framework) of calcified substance.
Bone matrix contains collagen fibers and the minerals calcium phosphate and calcium carbonate, which provide strength to bone. The copper enzyme, lysyl oxidase, is involved in the cross-linking of collagen in forming the framework for depositing calcium and other minerals to build and repair bone.
Osteocytes maintain the health of bone by their metabolic activity in regulating normal bone turnover. Bone turnover is the breaking down and removal of old or damaged bone and rebuilding or remodeling of healthy bone that is ongoing throughout life. The bone formation process takes about 3 months to complete.
Bone tissue provides a framework that provides shape to our bodies, protects body organs, enables the function of muscle tissue to move our parts, and acts as a reservoir to provide certain minerals such as calcium and phosphorus to the whole body when not otherwise available from the diet.Some bone tissues produce red and white blood cells which are essential to life.