the skeletal system

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Across
  1. 2. bones cavernous areas consist of
  2. 4. a living tissue with active cells and blood support
  3. 8. long bone with two heads AND a shaft
  4. 11. bones dense areas contain
  5. 13. a fracture in which the bone ends penetrate through the skin surface
  6. 14. a fibrous cellular vascular and highly sensitive life support sheath for bones
  7. 16. bone broken cleanly; ends do not penetrate the skin
  8. 17. a result of twisting forces
  9. 19. nonliving structure part of bone
  10. 20. mature osteoblasts; process engage in metabolic and calcium exchange with blood
Down
  1. 1. bone forming cells that are secrete collagen and ground substances into the bone matrix
  2. 3. site of fat storage in adults
  3. 5. a red gelatinous substance composed of red and white blood cells in a variety of developmental forms
  4. 6. tiny canals connecting lacunae
  5. 7. where bones are connected at
  6. 9. residences of osteocytes
  7. 10. layers of calcified matrix
  8. 12. polynucleated macrophage like cells that digest bone matrix by secreting protease enzyme
  9. 15. is hormone secreted by the parafollicular C cell of the thyroid
  10. 18. a long bone with two heads