Explanation:
The Diaphysis ossifies before the other portions.
This is the middle of a section of thick, compact long bone. It comprises the main shaft and is typically cylindrical or tube-like in appearance. It functions as structural support and contains bone marrow, which produces red blood cells, white blood cells and platelets; it also contains adipose or fat tissue.
Osteoids comprise, significant sections of the entire bone matrix, and this includes fibers of collagen which give bone its flexibility and mechanical strength this allows born to resist stretching and twisting forces.
Osteoblasts are highly specialized cells which formulate new bone through the production or secretion of parts of the organic matrix; this is referred to as the osteoid and mediate the calcification of osteoid during the formation of mature bone matrix. The diaphysis is produced through the ossification of stem cells or mesenchymal cells during early development. Primary ossifiation occurs at ossification centers at the diaphysis, from cartilage cells in the matrix.
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