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bone (cells (2% of bone mass) (osteocytes (live in lacunae within the bone…
bone
cells (2% of bone mass)
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osteoblasts
live at the edge of the bone matrix, simple cubodial-like
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osteoclasts
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giant, multinucleated cells derived from monocytes
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types of bone
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lamellar bone: remodeled from woven bone, parallel bundles of collagen in thin layers
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cancellous bone (spongy): 20% of lamellar bone, interconnected trabeculae
composition
matrix minerals (2/3): inorganic materials, such as, calcium salt, mainly calcium hydroxyapatite (Ca10PO4)6(OH)2, bicarbonate, among ions
matrix proteins (1/3): collagen type I fibers, proteoglycan, and adhesive molecule osteonectin