The marked elasticity of the<unk>  serves to preserve upright posture, and to assist the vertebral column in resuming it after flexion. The elastin, fairly unique to the<unk>  among other<unk> , prevents buckling of the<unk> into the spinal canal during extension, which would cause spinal cord compression.
Ligamenta flava
Vesical tenesmus
Stratum spinosum
Planum temporale
Glia limitans
Livedo reticularis
Stratum granulosum
Dens invaginatus