Skeleton Deck Structure of Bone (Osteons)

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10 Terms

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Compact bone

Dense, solid

contains passageways for nerves and blood vessels

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What is compact bone made out of

Osteons of Haverson system

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Osteon has 4 structures

lamealle

lacunae

canaliculi

haverson canal

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Lamelle is?

layers of cylinders of matrix

  • Collagen fibers in one layer go in one direction

  • Collagen fibers in another layer go in opposite directions

  • Inorganic salts are able to bind to fibers

  • Alternating fibers make it able to handle stress

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circumferential lamellae

Not a part of osteon

  • in the periosteum around the bone

  • this prevetns bones from twisting

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Lucuane

Spaces between lamellae

  • contain fluid and osteocytes

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Canalicali

Canals connect lucuane to main canal for waste removal and bring in nutrients

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haverson canal

  • canal in the middle of the lamelle

  • brings in nutietns and gets rid of waste

  • has blood vessels and nerves

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Volkman’s canal

Connect periosteum’s blood vessel to central canal

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Haverson system physiology

permits delivery of nutrients and waste from osteocytes