Across
- 5. Internal skeleton of an animal (vertebrates), which is comprised of bone and cartilage
- 6. makes up the dense outer layer of bone
- 8. Attach muscle to bone
- 9. tough, fibrous membrane that covers and protects the outer surface of bone
- 10. Attach bone to bone
- 12. inflammatory disease that damages joints and surrounding tissue
- 13. soft connective tissue that produces blood cells, found inside the pores of spongy bone
- 14. 80 bones along the axis of the body, which protect the internal organs
- 15. material that makes up connective tissue
Down
- 1. 126 bones of the appendages and the girdles
- 2. bone found inside bones and is lighter and less dense than compact bone because it is porous
- 3. External skeletal systems made up of chitin and calcium carbonate that provides protection to creatures such as insects and crustacea
- 4. side to side curve in the spine, becomes evident during adolescence
- 7. Loss of bone tissue particularly in elderly
- 11. softening of bones associated with vit. D deficiency