the five vertebrae that are fused together to form the sacrum.
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vertebrae sacrales the segments (usually five) below the lumbar vertebrae, which are normally fused, forming the sacrum. Symbols S1–S5.Medical dictionary. 2011.
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vertebrae sacrales the segments (usually five) below the lumbar vertebrae, which are normally fused, forming the sacrum. Symbols S1–S5.Medical dictionary. 2011.