Across
- 4. ribs - lowest two pairs joint only back bone
- 6. - 33 small bones
- 9. marrow - long bones with soften fatty substance
- 10. - 22 bones
Down
- 1. system - group of organs together
- 2. - upper most vertebrae in the neck
- 3. - meeting of two bones held by strong tissues
- 5. - strong fibres which connects muscles and bones
- 7. - coating on teeth harder than bones
- 8. - powerful thigh bone