osteon

(noun)

any of the central canals and surrounding bony layers found in compact bone

Related Terms

  • onnective tissue because it has a matrix. The living cell types are red blood cells, also called erythrocytes, and white blood cells, also called leukocytes . The fluid portion of whole blood, its matrix, is commonly called plasma.
  • trabecula
  • canaliculi
  • epiphysis
  • osteoclast
  • osteocyte
  • osteoblast

Examples of osteon in the following topics:

  • Bone

    • Compact bone tissue consists of units called osteons or Haversian systems.
    • Osteons are cylindrical structures that contain a mineral matrix and living osteocytes connected by canaliculi which transport blood.
    • Each osteon consists of lamellae, layers of compact matrix that surround a central canal (the Haversian or osteonic canal), which contains the bone's blood vessels and nerve fibers.
    • Spongy bone tissue does not contain osteons.
    • The small dark ovals in the osteon represent the living osteocytes.
  • Connective Tissues: Bone, Adipose, and Blood

    • Compact bone is organized into subunits called osteons.
    • A blood vessel and a nerve are found in the center of the osteon within a long opening called the Haversian canal, with radiating circles of compact bone around it known as lamellae.
    • (b) Compact bone is organized into rings called osteons.
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