Appositional Bone Growth
The growth in diameter of bones around the diaphysis occurs by deposition of bone beneath the periosteum. Osteoclasts in the interior cavity continue to degrade bone until its ultimate thickness is achieved, at which point the rate of formation on the outside and degradation from the inside is constant.
Read more about this topic: Endochondral Ossification
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picking out its atomic worms.”
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—Kate Millett (b. 1934)