746 



THE VASCULAR SYSTEMS 



and joins the external iliac vein about three-quarters of an inch above Poupart's 

 ligament. 



The pubic vein communicates with the obturator vein in the obturator foramen, 

 and ascends on the back of the pubis to terminate in the external iliac vein. 



The internal iliac vein (v. iliaca interna, v. hypogastrica) commences near the 

 upper part of the great sacrosciatic foramen, passes upward behind and slightly 

 to the inner side of the internal iliac artery, and at the brim of the pelvis joins with 

 the external iliac to form the common iliac. 



UMBILICUS 



SUPERFICIAL 

 EPIGASTRIC 



SUPERFICIAL 



INTERNAL 



CIRCUMFLEX 



SUPERFICIAL 



EXTERNAL. 



PUDIC 



SUPERFICIAL 



EXTERNAL 



CIRCUMFLEX 



FIG. 521. The femoral vein and its tributaries. (Poirier and Charpy.) 



Tributaries. With the exception of the fetal umbilical vein, which passes up- 

 ward and backward from the umbilicus to the liver, and the iliolumbar vein which 

 usually joins the common iliac vein, the tributaries of the internal iliac vein corre- 

 spond with the branches of the internal iliac artery. It receives (a) the gluteal, 

 sciatic, internal pudic, and obturator veins, which have their origins outside the 

 pelvis; (&) the lateral sacral veins, which lie in front of the sacrum; and (c) the 

 middle hemorrhoidal, vesical, uterine, and vaginal veins, which originate in venous 

 plexuses connected with the pelvic viscera. 



1. The gluteal veins (vv. glutaeae superiores) or venae comites of the gluteal 

 artery, receive tributaries from the buttock corresponding with the branches of 



