Dry/Compact Bone (T.S.)

Grounded thin section of dried bone shows empty canals for blood vessels, lacunae for osteocytes and connecting canaliculi.

Important Labels:

  • Osteon (Structural unit)
    • Haversian Canal (central canal)
    • Lamellae (thin plates of bone that contain Osteocytes)
    • Lacunae (almond shaped spaces that contain Osteocytes)
  • Cement line: boundary between each Osteon
  • Volkmann Canal: also called Perforating Canal, it is anastomoses between central canals.
  • External Circumferential lamellae: forms external wall of compact bone
  • Internal Circumferential lamellae: forms internal wall of compact bone (endosteum along the marrow cavity).
Compact/Dried bone histology diagram

“In living bone lacunae of each Osteon house Osteocytes & Central/Haversian canals contain reticular connective tissue, blood vessels and nerves.”

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