| A | B |
|---|
| marrow | substance in center of bones |
| skeleton | framework of your body |
| calcium | mineral found in bones |
| periosteum | the outer covering of the bones |
| ligament | tissue that fastens your bones together |
| cartilage | smooth tissue that acts as buffer |
| axial skeleton | includes skull, ribs, and spinal cord |
| appendicular skeleton | includes legs, arms, pelvis and shoulders |
| vertebrae | the irregular bones in spinal colum |
| spinal cord | large bunch of nerves that pass through spine |
