Chapter 6 Key Terms

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Across
  1. 3. bone dense bone containing parallel osteons.
  2. 7. layer that surrounds a bone, consisting of an outer fibrous and inner cellular region.
  3. 8. a cell that dissolves the fibers and matrix of bone.
  4. 11. an articulation that permits a small degree of independent movement.
  5. 13. a small sac filled with synovial fluid that cushions adjacent structures and reduces friction.
  6. 14. exist wherever two bones interact.
  7. 16. an immovable joint
  8. 17. a cell that produces the fibers and matrix bone.
  9. 20. a bone cell responsible for the maintenance and turnover of the mineral content of the surrounding bone.
  10. 21. bone cancellous bone, resembles a network of bony rods or struts separated by spaces.
  11. 22. skeleton subdivided into the skull and associated bones (including the auditory ossicles, or ear bones, and the hyoid; the thoracic cage, composed of the ribs and sternum (rib cage) and thoracic vertebrae; and the vertebral column.
Down
  1. 1. a tissue that fills the internal cavities in a bone; may be dominated by hemopoietic cells (red marrow) or adipose tissue (yellow marrow).
  2. 2. the head of a long bone.
  3. 4. the basic histological unit of compact bone, consisting of osteocytes organized around a central canal separated by concentric lamellae.
  4. 5. skeleton includes the upper and lower limbs and the pectoral and pelvic girdles.
  5. 6. a break or crack in a bone.
  6. 9. the formation of bone.
  7. 10. dense band of connective tissue fibers that attach one bone to another.
  8. 12. a synovial joint.
  9. 15. the shaft of a long bone.
  10. 18. a fibrocartilage pad between opposing surfaces in a joint.
  11. 19. fluid substance secreted by synovial membranes that lubricates joints.