Chapter 6: Part 3

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Bwaller0016
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92966
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Chapter 6: Part 3
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2011-07-04 19:34:51
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Part 3 Bones and Skeletal tissue
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  1. Compact bone on the outside is ___________ covered.
    periosteum
  2. Spongy bone within is ___________ covered.
    endosteum
  3. Red bone marrow is between the _____________.
    trabeculae
  4. The Red marrow cavities of adults are in trabecular cavities of the ______ of the ______ & ________.
    heads , femur & humerus
  5. Red marrow in adults is also in trabecular cavities of ________ ________ of flat bones.
    spongy bone
  6. Red marrow of infants is in ____________ cavities and all spaces in _________ ________.
    medullary , spongy bone
  7. Osteogenic cells are stem cells in ___________ and ____________ that give rise to osteoblasts.
    periosteum & endosteum
  8. ____________ are mature bone cells.
    osteocytes
  9. What bone cells reabsorb?
    osteoclasts
  10. Haversian system, or ostean is a __________ _________.
    structural unit
  11. Weight bearing column like matrix tube is the ____________.
    lamellae
  12. Central (Haversian) canal contains _______ _________ & ________.
    blood vessels & nerves
  13. Perforating canals are ___________ canals.
    Volkmann's
  14. Perforating canals are at _______ _______ of central canals.
    right angles
  15. What connects blood vessels and nerves of the periosteum and central canal?
    perforating canals
  16. Small cavities that contain osteocytes are ___________.
    Lucanae
  17. Lucanae are small cavities the contain ___________.
    osteocytes
  18. Hairlike canals that connect lacunae to each other and the central canal are ____________.
    canaliculi
  19. Canaliculi are hairlike substances that connect ____________ to each other and the ___________ ____________.
    lacunae, central canal
  20. _____________ alilgn along lines of stress.
    trabeculae
  21. Trabeculae contain irregularly arranged ___________, ____________, & __________.
    lamellae, osteocytes, & canaliculi
  22. Capillaries in endosteum supply _________.
    nutrients
  23. Trabeculae have no __________.
    osteons
  24. What makes up the organic part of the bone?
    • osteogenic cells
    • osteoblasts
    • osteocytes
    • osteoclasts
  25. Organic bone matrix secreted by osteoblasts is ____________.
    osteoid
  26. Ground substances of osteoid are ___________ & ___________.
    proteoglycans & glycoproteins
  27. Collagen fibers provide _________ ______ & __________.
    tensile strength & flexibility
  28. What are hydroxypatites?
    mineral salts
  29. What makes up 66% of bone by mass?
    Hydroxyapatites
  30. Hydroxyapatites are mainly _________ __________ crystals.
    calcium phosphate
  31. What is responsible for hardness and resistance to compression?
    Hydroxyapatites

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