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.
Cancellous or Spongey Bone. Cancellous or spongey bone is found forming the core of most flat and irregular bones. It is also very prevalent in the epiphyses(ends) of long bones. The construction of this osseous tissue type is quite different than that of compact bone. One key difference is the absence of osteons! Spongey bone as the name implies is more open and in cross-section offers a compartmentalized appearance not unlike that of a sponge.