Chapter 6: Part 5

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Author:
Bwaller0016
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92988
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Chapter 6: Part 5
Updated:
2011-07-04 23:26:24
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Part 5: Bones and Skeletal Tissues
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  1. Blood Ca is primarily controlled by __________ hormone.
    parathyroid
  2. When Blood Ca levels are lowered, parathyroid glands release _____.
    PTH
  3. PTH stimulates osteoclasts to degrade bone matrix and release ______.
    Ca
  4. Once Ca is released, Blood Ca levels ______.
    rise
  5. Blood Ca may be affected to a lesser extent by ____________.
    calcitonin
  6. When Blood Ca levels are elevated, parafollicular cells of thyroid release __________.
    calcitonin
  7. Osteoblasts deposit _________ _________.
    calcium salts
  8. When Calcium salts are released, Blood Ca levels are then ________.
    lowered
  9. _______________: a bone grows or remodels in response to forces or demands placed upon it
    Wolff's law
  10. Handedness results in bone of one upper limb being ___________ and __________.
    thicker and stronger
  11. Curved bones are thickest where they are most likely to _________.
    buckle
  12. Trabeculae form along lines of __________.
    stress
  13. Where do large, bony projections occur?
    Where heavy, active muscles attach
  14. Four ways bones are classified:
    • Position of bone ends after fracture
    • Completeness of the break
    • Orientation of the break
    • Skin penetration
  15. ___________ = normal position
    Nondisplaced
  16. ____________ = out of alignment
    Displaced
  17. ____________ = broke all the way through
    Complete
  18. ____________ = not broke all the way through
    Incomplete
  19. _____________ = parallel to long axis of bone
    Linear
  20. _____________ = perpendicular to long axis
    Transverse
  21. _________________ = bone penetrates the skin
    compound
  22. _____________ = bone ends do not penetrate the skin
    simple
  23. Compound is __________.
    open
  24. Simple is ___________.
    closed
  25. All fractures can be described in terms of what 3 things?
    • Location
    • External appearance
    • Nature of the break
  26. ________________ = bone fragment in 3 or more pieces
    Comminuted
  27. ____________ = bone is crushed
    compression
  28. ______________ = twisted forces are applied to the bones
    spiral
  29. _____________ = seperation (only in children)
    Epiphysial
  30. _____________ fracture ends bone growth.
    Epiphysial
  31. _____________ = broken inward
    Depressed
  32. _______________ = only one side breaks
    Greenstick
  33. Greenstick happens in __________ & _________.
    children and elderly

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