Common Iliac Artery

Common iliac artery is formed by the splitting of the abdominal aorta at the level of the L4 vertebra. The two vessels have an angle of 60-70 ° in men and 70-80 ° in women and is called aortic bifurcation. A. iliaca communis dextra et sinistra then descend along the inner edge of the psoas major.

Blood supply area
A. iliaca communis sends only small branches to the psoas major, to the lymph nodes and to the ureter.

Course and branching
A. iliaca communis dextra passes perpendicularly through the left v. Iliaca communis and immediately afterwards continues in front of the right v. Iliaca communis. Both aa. iliacae communes are divided in the area of ​​the hip joint into: '''Aa. iliaceae are closely related to ureters'''. Because aa. iliacae are shifted slightly to the left, the left ureter runs over the a. iliaca communis sinistra and the right ureter runs over the a. iliaca externa dextra.
 * a. iliaca interna - continues into the small pelvis and supplies the muscles and organs there;Abdominal aorta.sr.jpg
 * a. iliaca externa - descends along the m. psoas major and into lacuna vasorum, where it continues as a. femoralis.

From division continues caudally a. sacralis mediana which the runs under v. iliaca commnunis sinistra, then runs along the os sacrum in front of coccyx and ends as glomus coccygeum - arterio-venous anastomoses in front of the tip of the coccyx.

A. sacralis mediana sends:


 * a. lumbalis ima - a paired branch copying the course of aa. lumbales;
 * rr. lateral sacrales.