Answer with Explanation:
It is important to take good care of "periosteum" when operating a bone because this membrane is very thin and it consists of the "osteoblast cells," which can be found in the inner layer. These cells aid in the recovery and repair of fractures in bone. This is the reason why even after falling from the tree and sustaining a fracture, a child has the ability to recover his bone injury in time. However, it takes a little longer for the bone to regenerate when it comes to older people. On the other hand, its outer layer is responsible for the blood supply in the bones.