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Diagrammatic view of a pie-shaped segment of compact bone. Close-up of a portion of one osteon.

Compact bone

Spongy bone

Central (Haversian) Canal

Osteon (Haversian System)

Circumferential lamellae

Perforating (Volkman's) Canal

Endosteum lining bony canals and covering trabeculae

Perforating (Sharpey's) Fibers

Periosteal Blood vessel



Osteocyte in a lacuna

Central Canal

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