Skeletal System
Superior Articular Facets of Fifth Lumbar Vertebra
Facies articulares superiores vertebrae lumbalis quintae
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The superior articular facets are the smooth, posteromedially facing articular areas on the superior articular processes of a lumbar vertebra. They articulate with the corresponding inferior articular facets of the vertebra above, forming zygapophyseal joints.
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Fifth Lumbar Vertebra
The fifth lumbar vertebra might become included into the sacrum and so become sacralized, or alternatively the first sacral segment might remain separate from the rest of the sacrum and become lumbarized.
