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Compact bone

Lab_1b-14a

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Close-Up View of an Haversian System

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This slide contains a section of dried compact bone. Note that the bone matrix is deposited in concentric layers called lamellae. The basic unit of structure in compact bone is the osteon. In each osteon, the lamellae are arranged around a central Haversian canal that houses nerves and blood vessels in living bone. The osteocytes (bone cells) are located in spaces called lacunae, which are connected by slender branching tubules called canaliculi. These "little canals" radiate out from the lacunae to form an extensive network connecting bone cells to each other and to the blood supply.

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