EXTERNAL ILIAC ARTERY 



201 



they leave the body of the child, and become the two umbilical 

 arteries twining around the umbilical vein in the umbilical cord. 

 After birth, these portions of the vessels no longer transmit blood 

 but dwindle to fibrous cords lying close to the anterior abdominal 

 wall (p. 356). 



Uterine Branch to round Fimbriated extremity of 



branch ligament Fallopian tube 



Uterine artery 

 .Hypogastric artery 



Vaginal arteries 



Azygos artery of vagina 



FIG. 138. UTERINE AND OVARIAN ARTERIES. 



Uterine, a branch of hypogastric; ovarian, a branch of aorta. Note the location 

 of the ureter. (Morris.) 



PRINCIPAL ARTERIES OF THE LOWER EXTREMITY 



The external iliac distributes its branches almost entirely to 

 the lower extremity. It is about four inches long and follows the 

 brim of the pelvis to the inguinal ligament where it becomes 

 femoral. 



Collateral circulation. The inferior epigastric branch of the external iliac 

 anastomoses with the superior epigastric branch of the internal mammary, in 

 the substance of the rectus muscle, thus making an indirect route from the 

 arch of the aorta to the iliac vessels if the abdominal aorta or iliac artery be 

 ligated. 



