THE ARTICULATIONS OF THE TRUNK 



179 



Fifth lumbar vertebra 

 Vertebra lumbalis V. 



First sacral nerve 

 Nervus sacralis I 



Spinal dura mater 

 Dura mater spinalis 



Fifth sacral nerve 



Nervus sacralis V. 



Coccygeal nerve .. 



Nervus coccygeus 



Filiform radiations connecting the 



spinal dura mater with the lateral 



wall of the sacral canal 



Fourth posterior sacral foramen 

 Foramen sacrale posterius IV. 

 Filum terminals of the spinal dura mater 

 or central ligament of the spinal cord 



Filum dura; matris spinalis 



Coccygeal cornu 

 Cornu coccygeum 



Posterior common ligament 



Lig. longitudinale posterius 



Divided connexions of the posterior common 

 ligament with the spinal dura mater 



Broken sagittal fibrous membranes 



connecting the posterior common 



ligament with the spinal dura 



mater 



Filiform connexions of the spinal 



dura mater with the posterior 



common ligament 



Fibrous radiations connecting the 



spinal dura mater with the lateral 



wall of the sacral canal 



Lowermost filiform connexions of the 



spinal dura mater with the posterior 



common ligament 



Interarticular sacrococcygeal ligament 

 Lig. sacrococcygeum articulare 



Lateral sacrococcygeal ligament 



Lig. sacrococcygeum laterale 



^Lateral coccygeal ligament 



Lig. coccygeum laterale 

 ^ Deep posterior sacrococcygeal ligament 

 Lig. sacrococcygeum posterius profundum 



'/:, 



FIG. 404. LUMBAR AND SACRAL PORTIONS OF THE POSTERIOR COMMON LIGAMENT, AND THE 

 CONNEXIONS OF THIS LIGAMENT WITH THE SPINAL DURA MATER AND WITH THE DEEP 

 POSTERIOR SACROCOCCYGEAL LIGAMENT. (THE SACRUM AND THE LUMBAR PORTION OF THE 

 VERTEBRAL COLUMN WITH THE SPINAL CANAL LAID OPEN FROM BEHIND.) 



The sacral portion of the dura mater has been drawn to the left side. 



Ligamenta columnse vertebralis The ligaments of the vertebral column. 



232 



