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8YNDESMOLOGY 



various directions. The upper part (short posterior sacroiliac ligament) is nearly 

 horizontal in direction, and passes from the first and second transverse tubercles 

 on the back of the sacrum to the tuberosity of the ilium. The lower part (long 

 posterior sacroiliac ligament) is oblique in direction; it is attached by one extremity 



Iliolumbar ligament 

 Supraspinal ligament 



Short post, sacroiliac lig. \ 



Long post, sacroiliac lig 



Sacrospinous ligament 



Superficial post, sacrococ 

 cygeal ligament 



Sacrotuberous ligament 

 Fio. 320. Articulations of pelvis. Posterior view. (Quain.) 



to the third transverse tubercle of the back of the sacrum, and by the other to the 

 posterior superior spine of the ilium. 



The Interosseous Sacroiliac Ligament (ligamentum sacroiliacum interosseum) . 

 This ligament lies deep to the posterior ligament, and consists of a series of short, 

 strong fibers connecting the tuberosities of the sacrum and ilium. 



