52 



LIGAMENTS OF THE PELVIS. 



Fig. 34. 



ficulty divided. A yellow fluid is sometimes interposed, and in 

 children and pregnant women a synovial membrane. 



Anterior Sacro-Iliac Li- 

 gament; short ligamentous 

 fibres passing from bone to 

 bone in front of the joint. 



Posterior Sacra - Spin- 

 ovs Ligament ; numerous 

 strong fibres, passing from 

 the superior and inferior 

 spinous processes to the 

 transverse processes of the 

 third and fourth sacral ver- 

 tebrsB. 



Greater Sacro - Sciatic 

 Ligament, extends from 

 the posterior inferior spin- 

 ous process of the ilium, 

 margin of the sacrum and 

 of the first bone of the coc- 

 cyx, to the inner margin of 

 the tuberosity and ramus 

 of the ischium. 

 Lesser Sacro- Sciatic Ligament; in front of last; arises from 

 the side of the sacrum^ (Fig. 34), and coccyx; inserted into the 

 spine of the ischium. 



These two ligaments form the 

 posterior and lateral boundaries of 

 the pelvis, converting the sacro- 

 sciatic notch, into two foramina,* * 

 (Fig. 84). 



I/io-Lumhar Ligament, passes 

 from the transverse process of the 

 last lumbar vertebra to the poste- 

 rior part of the crest of the ilium.^ 

 (Fig. 35). 



Lumho- Sacral Ligament, arises 

 from the transverse process of last 

 lumbar vertebra, and is inserted 

 into the upper part of the sacrum.^ 

 (Fig. 35). 



Anterior Coccygeal Ligament. 

 — Its fibres are indistinct, often 

 wanting — runs in front of the 

 whole length of coccyx from the 

 last bone of the sacrum. 



