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  2. Osteon - Wikipedia

    en.wikipedia.org/wiki/Osteon

    Osteons on cross-section of a bone. In osteology, the osteon or haversian system (/ h ə ˈ v ɜːr. ʒ ən /; named for Clopton Havers) is the fundamental functional unit of much compact bone. Osteons are roughly cylindrical structures that are typically between 0.25 mm and 0.35 mm in diameter. [1]

  3. Haversian canal - Wikipedia

    en.wikipedia.org/wiki/Haversian_canal

    Haversian canals are contained within osteons, which are typically arranged along the long axis of the bone in parallel to the surface. The canals and the surrounding lamellae (8-15) form the functional unit, called a Haversian system, or osteon .

  4. Osteocyte - Wikipedia

    en.wikipedia.org/wiki/Osteocyte

    The cell also exhibits a reduced size endoplasmic reticulum, Golgi apparatus and mitochondria, and cell processes that radiate largely towards the bone surfaces in circumferential lamellae, or towards a haversian canal and outer cement line typical of osteons in concentric lamellar bone. [5]

  5. Bone - Wikipedia

    en.wikipedia.org/wiki/Bone

    Volkmann's canals at right angles connect the osteons together. The columns are metabolically active, and as bone is reabsorbed and created the nature and location of the cells within the osteon will change. Cortical bone is covered by a periosteum on its outer surface, and an endosteum on its inner surface

  6. Bone canaliculus - Wikipedia

    en.wikipedia.org/wiki/Bone_canaliculus

    Bone canaliculi are microscopic canals between the lacunae of ossified bone.The radiating processes of the osteocytes (called filopodia) project into these canals. These cytoplasmic processes are joined together by gap junctions.

  7. Volkmann's canal - Wikipedia

    en.wikipedia.org/wiki/Volkmann's_canal

    Volkmann's canals, also known as perforating holes or channels, are anatomic arrangements in cortical bones that allow blood vessels to enter the bones from periosteum.They interconnect the Haversian canals (running inside osteons) with each other and the periosteum.

  8. Intramembranous ossification - Wikipedia

    en.wikipedia.org/wiki/Intramembranous_ossification

    Osteons are components or principal structures of compact bone. During the formation of bone spicules, cytoplasmic processes from osteoblasts interconnect. This becomes the canaliculi of osteons. Since bone spicules tend to form around blood vessels, the perivascular space is greatly reduced as the bone continues to grow. When replacement to ...

  9. Osteoblast - Wikipedia

    en.wikipedia.org/wiki/Osteoblast

    Chondrocytes do not have intercellular connections and are not coordinated in units. Cartilage is composed of a network of collagen type II held in tension by water-absorbing proteins, hydrophilic proteoglycans. [26] This is the adult skeleton in cartilaginous fishes such as sharks. It develops as the initial skeleton in more advanced classes ...