The viscoelasticity of bone can therefore arise from the void collapse and desification of cancellous bone and the natural viscoelastic response of collagen as a polymer.
32.
This " cortical-cancellous dichotomy " may represent a mechanism for enlarging bone size, and thus bone resistance, to cope with increased body weight.
33.
These bones are composed of two thin layers of compact bone enclosing between them a variable quantity of cancellous bone, which is the location of red bone marrow.
34.
A 2009 study estimated that ankylosaurids could swing their tails at 100 degrees laterally and the mainly cancellous clubs would have a lowered moment of inertia and been effective weapons.
35.
Its beak made up about three-quarters of the head's length and had bony tooth-like serrations that were hollow or maybe filled with cancellous bone.
36.
Because of the way that bone is formed, bone has a high compressive strength of about 170 yield strength of cancellous bone has been investigated using high resolution computer models.
37.
In the cancellous portion of femoral head it is not uncommon to find trabeculae with apparently intact osteocytes which seem to be " alive " but are no longer synthetizing collagen.
38.
Additionally, the outer shell of the long bone is compact bone, then a deeper layer of cancellous bone ( spongy bone ) which contains in the medullary cavity the bone marrow.
39.
Destruction confined to the cancellous portion of the bone cannot be detected radiographically, as radiolucencies appear only when there is internal or external erosion or destruction of the bone cortex . ""
40.
Today a growing body of scientific evidence indicate that this disease process, in the cancellous bone and bone marrow, is caused by bone infarcts mediated by a range of local and systemic factors.
