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Unformatted text preview: Bone Growth 18/02/2008 10:02:00 ← Proximal Epihysial Plate (Long bone) • Epihysial plate o Ancors at epihysis of long bone • Proliferating cartilage o Dividing chondroblasts o Contributes to growth • Hypertrophic cartilage o Cells get larger o Less matrix o Stimulates calcification of hyline cartilage Chrondroblasts die Broken down by osteoclasts Dissolve collagen o Replaced by bone • Diaphysis o Bone Growth o Ephiphysis grows considerably less ← Interstitial growth • Diaphysiceal osteoclasts break down calcified cartilage • Osteoblasts lay down spongy bone • Chrondroblasts form cartilage matrix at proliferating cartilage region • Growth in length stops when osteoclasts/blasts work faster o Chondroblasts cannot keep up with pace o Epiphysial plate closes and becomes epihysial line ← Appositional growth 18/02/2008 10:02:00 ← Growth in width • Extra osteons o Osteoblasts build bone around blood vessel...
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This note was uploaded on 04/03/2008 for the course PSIO 201 taught by Professor Stanescu during the Spring '08 term at Arizona.
- Spring '08