Across
- 2. One of the bones in your spine.
- 4. The substance inside a bone that makes blood
- 10. Part of the skeleton that includes shoulders, pelvis and the arm and leg bones
- 11. Something that joins bone to bone.
Down
- 1. The largest bone in the human body.
- 3. The place where two bones meet.
- 5. Part of the skeleton that includes ribs, spine and skull
- 6. Something that joins muscles to bone.
- 7. The bone that protects your brains.
- 8. Your backbone.
- 9. The collection of bones that protect your lungs.