Across
- 6. unconscious control
- 7. Forces us to move
- 10. produces red blood cells
- 11. keeps heart pumping
Down
- 1. attached to bone
- 2. involuntary muscle
- 3. reduces friction
- 4. 10x harder than metal
- 5. under control concious
- 8. Shapes our body
- 9. what a bone needs to be strong