chapter 6 growth in length of long bones
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proliferation zone
cartilage cells undergo mitosis
appositional growth
increase in bone thickness
calcification zone
matrix calcifies; cartilage cells die; matrix begins deteriorating; blood vessels invade cavity
ossification zone
new bone formation is occurring
hypertrophic zone
older cartilage cells enlarge
bone matrix
rigid framework of bone that consists of tough protein fibers and mineral crystals
resting zone
side of epiphyseal plate facing epiphysis; cartilage cells exhibit little to no mitosis