470 



ABDOMEN 



Ligamenta Flava (O.T. Ligamenta Sub/lava) also are present. 

 They are two short bands of yellow elastic tissue, placed one 

 on each side of the median plane. Superiorly, they are attached 

 to the anterior aspect of the lower borders of the laminae of 

 the last lumbar vertebra ; whilst, inferiorly, they are fixed to 

 the posterior aspect of the upper margins of the laminae of 

 the first sacral segment. 



Lig. sacro- 

 tuberosum 



Obturator 

 membrane 



FIG. 218. Posterior view of the Pelvic Ligaments and of the Hip Joint. 



Ligamentum Interspinale. An interspinous ligament con- 

 nects the lower border of the spinous process of the last 

 lumbar vertebra with the upper border of the spinous process 

 of the first sacral vertebra. A ligamentum supraspinak passes 

 between the extremities of the same spinous processes. 



So far, then, the ligaments of the lumbo-sacral articulations 

 are identical with those which, above the level of the sacrum, 



