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Unformatted text preview: Medullary cavity: yellow marrow Hemopoiesis: 2.5million RBCs every second Irregular (everything else) Bone is composed of several different bone cells in a matrix of ground substance, salts (calcium & phosphorus), and collagen fibers. Composite material: flexibility and strength Bone cells: Estrogenic: immature bone cell in eriostemon and endosperm, responds to injury (osteoblasts and osteoclasts) Osteoblasts: form bone and will become osteocytes Osteocytes: mature bone cells. Osteoclasts: reabsorbed of bone tissue Bone-lining: thought to cover bone and regulate mineral movement in and out of bone Trabeculae: shock absorbing, tiles Parts of bone Osteon (haversian system) (column) Lamellae (concentric rings) Osteocyte Lacuna Canaliculus Central (haversian) canal Perforating (Volkmanns) canal Figure 1.11 Figure 1.12 Figure 4.1 Figure 5.3 Figure 6.3 Figure 6.6...
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- Spring '07