Reasons for the Population Decline. There is no question but that the populations of most European countries will decline in the next generation, and in the cases of Germany and Russia, the decline will be dramatic. In fact, the entire global population explosion is ending.
Disorders of the bone may involve the osseous tissue. Physical therapy can help some people rebuild strength and bone density lost to disorders such as osteoporosis. Osseous tissue is the primary constituent of bone, creating the mineral matrix that makes bones hard, strong, and lightweight.
Benign Fibro-osseous Lesions. A group of lesions in which normal bone is. replaced initially by fibrous connective tissue. Over time, the lesion is infiltrated by osteoid. and cementoid tissue. This is a benign and idiopathic process. Fibrous Dysplasia. Localized change in bone metabolism.