<prompt> Structure s pierce in Lumber spinal puncture isare a Ligamentum flavumb Duramaterc Supraspinous ligamentd Anterior longitudinal ligamente Posterior longitudinal ligamentabcbcacdbcd  <response>: Structure pierced during SA from outside in are :- Skin subcutaneous tissue Supraspinous interspinous ligament Ligament flavum Duramatter Arachnoid matter. 