Ossification-the normal process of bone formation, a baby’s skeleton begins as fragile membranes and cartilage. Periosteum-is the tough, fibrous tissue that forms the outermost covering of bone. Compact bone-also known as cortical bone, is the dense, hard, and very strong bone that forms the protective outer layer of bones. Spongy bone-also known as cancellous bone, is lighter and not as strong as compact bone. The type of bone is commonly found in the ends and inner portions of long bones such as the…
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