Bone Matrix Anatomy. Their unique composition and design allows bones to be relatively hard and strong while remaining lightweight. There are three types of cells that contribute to bone homeostasisOsteoblasts are bone-forming cell osteoclasts resorb or break down bone and osteocytes are mature bone cells.
This can be a common site of injury. The tenocyctes are responsible for the turnover of maintenance of the extracellular matrix described below. However in adult life bone undergoes remodeling in which resorption of old or damaged bone takes place on the same surface where osteoblasts lay new bone to replace that which is resorbed.
Which forms the content of the sac and the matrix which is the biologically active component forming the sac lining.
Compact and spongyThe names imply that the two types differ in density or how tightly the tissue is packed together. Bones are composed of two types of tissue. Supportive connective tissue bone and cartilageprovide structure and strength to the body and protect soft tissues. However in adult life bone undergoes remodeling in which resorption of old or damaged bone takes place on the same surface where osteoblasts lay new bone to replace that which is resorbed.
