196 HUMAN ANATOMY. 



Muscular, to the back part of the hip; 

 Articular, to supply the capsule of the hip-joint. 



Uterine, is distributed to body of uterus, giving branches 

 to the ureter and bladder ; 



Vaginal, supplies the mucous membrane of the vagina, giv- 

 ing branches to the rectum and neck of the bladder. It is analo- 

 gous to the male inferior vesical. 



From the posterior trunk 



Ilio-lumbar gives off two branches: 



Lumbar, supplies quadratus lumborum and psoas muscles; 



Iliac, supplies iliacus, gluteal, and abdominal muscles. 



Lateral sacral, are two in number the superior and inferior 

 supplying the contents of the sacral canal ; 



Gluteal, gives off a superficial and deep branch to supply 

 the gluteus maximus, medius, and minimus muscles. 



THE EXTERNAL ILIAC ARTERY 



extends from the bifurcation of the common iliac to Poupart's 

 ligament, under which it passes to become the femoral. 



Relations. It is in relation in front with the peritoneum and 

 intestines, circumflex iliac vein, spermatic vessels, genito-crural nerve, 

 and the lymphatic vessels and nerves; behind it rests upon the psoas 

 muscle, and is in relation with the external iliac vein, which, together 

 with the vas deferens, is also in relation to it on its inner side, beneath 

 Poupart's ligament. On its outer side it is in relation with the psoas 

 magnus and iliac fascia. 



Its branches are : 



The deep epigastric, arises above Poupart's ligament and 

 ascends obliquely inward between the transversalis fascia and 

 peritoneum to the rectus muscle, in which it ascends to anasto- 

 mose with the termination of the internal mammary artery. It 

 gives off: 



Cremasteric branch, to supply the cremaster muscle; 

 PuMc, crossing Poupart's ligament to descend to the inner side of 

 the femoral ring, and 



Muscular, to supply abdominal muscles and the peritoneum. 



The deep circumflex iliac ascends outwardly behind Pou- 

 part's ligament to the crest of the ilium, where it gives off 



Muscular branches, to supply the abdominal muscles. 



