| protect spinal cord | 0.67 |
| consist of 33 vertebrae | 0.57 |
| surround spinal cord | 0.52 |
| support the head | 0.50 |
| consist of the sacrum | 0.41 |
| consist of intervertebr… | 0.41 |
| extend to the pelvis | 0.40 |
| consist of the coccyx | 0.35 |
| consist of 24 articulat… | 0.35 |
| depict flexible elongat… | 0.31 |
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| convex | 0.43 |
| more stable | 0.25 |
| the axial skeleton | 0.40 |