is periosteum living or nonliving?
Hi There, Bone is a living material, it is vascularized and has nerves going through it. The formation of bone during the fetal stage of development occurs by two processes: intramembranous and endochondral ossification. Intramembranous ossification mainly occurs during formation of the flat bones of the skull; the bone is formed from mesenchyme tissue. The steps in intramembranous ossification are: Development of ossification center Calcification Formation of trabeculae Development of periosteum [edit]Endochondral ossification Endochondrial ossification Endochondral ossification, on the other hand, occurs in long bones, such as limbs; the bone is formed from cartilage. The steps in endochondral ossification are: Development of cartilage model Growth of cartilage model Development of the primary ossification center Development of the secondary ossification center Formation of articular cartilage and epiphyseal plate Endochondral ossification begins with points in the cartilage called “
