Structures of Bone

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Across
  1. 3. Which type of joint is involved in cracking knuckles?
  2. 5. Bone matrix is made of what fibers?
  3. 7. Outer covering of bone
  4. 8. Region w/ medullary cavity, smooth surface
  5. 9. Bone matrix has a _ ground substance
  6. 10. Signifies where bone stops growth
Down
  1. 1. Location of red marrow
  2. 2. Articular _ reduces friction
  3. 4. The nutrient _ is a part of the cardiovascular system
  4. 6. Region of muscle attachment, rough surface