Across
- 4. Form a transportation system that connects all the bone cells to the nutrient supply
- 5. Bone-building cells
- 8. Mature bone cells
- 9. Makes up most of the bone's length and is composed of compact bone
- 12. Formed by two sets of bone
- 13. Strongest and most supportive tissues in the body
Down
- 1. Spiky, open appearance like a sponge
- 2. Bone breaks into three or more fragments
- 3. giant bone-destroying cells in bones
- 4. Dense, looks smooth and homogeneous
- 6. Consists of a thin layer of compact bone enclosing an area filled with spongy bone
- 7. Complex consisting of a central canal and matrix rings
- 10. Protecting organs, producing blood cells, storing essential minerals
- 11. Bone matrix in tiny cavities
- 14. Disease of a children in which the bones fail to calcify