Bones are involved in a constant dynamic process of degeneration and regeneration. The various cells include bone-making osteoblasts (which mature into osteocytes), and osteoblasts, which are involved in dissolving bone. As the bones break down, they release minerals which are carried in the blood to various sites -for example, calcium helps skeletal, heart and involuntary muscles to contract. Dissolved bone tissue is immediately replaced by new crystals derived from fresh blood coming into the...