<prompt> All are true about Thoraco-lumbar fascia except-Attachment to the body of lumbar vertebraOrigin to the transversus and internal oblique musclesLumbar part situated in the interval between the iliac crest and the 12th ribAttachment to the transverse process of lumbar vertebra  <response>: Thoracolumbar fascia- Lumbar part extends between the 12th rib and iliac crest.- It has 3 layersAnterior layer-Attachment- Anterior surface of the transverse process of lumbar vertebraePosition- anterior to quadratus lumborumMiddle layerAttachment- the Transverse process of lumbar vertebraePosition- Posterior to quadratus lumborum but anterior to erector spinae.Posterior layerAttachment- the Spinous process of lumbar vertebraePosition- Posterior surface of erector spinae.- At the lateral margin of erector spinae, posterior and middle layers unite. Further, anterior layer joins at the later margin of quadratus lumborum. Together they form the aponeurotic origin of transversus abdominis. It also acts as the origin for internal oblique muscle. 