270 



THE MUSCLES. 



out in front, and collected behind, where they become slightly fibrous, and unite 

 with the tendon of the great psoas. 



Attachments. — It has its fixed insertion on the whole of the iliac surface, on 

 the external angle of the ilium, the sacro-iUac hgament, and the ilio-pectineal 



Fig. 165. I 



MUSCLES OF THE SUBLUMBAR, PATELLAR, AND INTERNAL CRORAL REGIONS. 



1, Psoas magnus ; 1', its terminal tendon ; 2, psoas parvus ; 3, iliacus ; 4, its small internal portion ; 

 5. muscle of the fascia lata ; 6, rectus femoris of the thigh ; 7, vastus internus ; 8, long adductor 

 of the leg ; 9, short adductor of the leg; 11, pectineus ; 12, great adductor of the thigh ; 12', 

 small adductor of the thigh; 13, semimembranosus; 14, semitendinosus. A, Portion of the 

 fascia i/iaca ; B, portion of the membrane reflected from the aponeurosis of the abdominal great 

 oblique muscle, forming the crural arch (Poupart's ligament) ; C, pubic tendon of the abdominal 

 muscles ; D, origin of the pubio-femoral ligament. 



crest. Its movable insertion is into the small internal trochanter, in common 

 with the great psoas. 



Relations. — Above, with the ilium ; below, with the iliac fascia and the long 

 adductor of the leg ; outwardly, with the muscle of the fascia lata and the origin 

 of the rectus femoris, from which it is separated by a space filled with fat ; 

 inwardly, with the crural vessels. It passes between the vastus internus and the 

 pectineus, to reach the trochanter. 



Actions. — It is a flexor and rotator outwards of the thigh. 



