…each of the series of small bones forming the backbone, having several projections for articulation and muscle attachment, and a hole through which the spinal cord passes…
…each of the series of small bones forming the backbone, having several projections for articulation and muscle attachment, and a hole through which the spinal cord passes…
…each of the twelve bones of the backbone to which the ribs are attached…
…the topmost vertebra of the backbone, articulating with the occipital bone of the skull…
