Iliac vein

In human anatomy, iliac vein refers to several anatomical structures located in the pelvis:

Common iliac vein, formed by the external and internal iliac veins, drains into the inferior vena cava
Deep circumflex iliac vein, formed by the union of the venae comitantes of the deep iliac circumflex artery, and joins the external iliac vein
External iliac vein, terminates at the common iliac vein, drains the femoral vein
Internal iliac vein, terminates at the common iliac vein, drains pelvic organs and perineum

Veins of the abdomen and pelvis

To azygos system

ascending lumbar
- subcostal

To IVC or left renal vein

Unpaired

median sacral vein

posterior:	iliolumbar superior gluteal lateral sacral

anterior:	inferior gluteal obturator uterine ♀ uterine plexus ♀ vesical vesical plexus prostatic plexus ♂ deep of penis ♂/clitoris ♀ posterior scrotal ♂/labial ♀ vaginal plexus/vein ♀ middle rectal internal pudendal inferior rectal bulb of penis ♂/vestibule ♀ rectal plexus

Portal vein
(Portal)

Splenic	short gastric left gastroepiploic pancreatic inferior mesenteric superior rectal left colic

Superior mesenteric	right gastroepiploic pancreaticoduodenal jejunal ileal middle colic right colic ileocolic appendicular

Direct	cystic left gastric/esophageal right gastric paraumbilical

Index of the circulatory system

Description	Anatomy Arteries head and neck arms chest abdomen legs Veins head and neck arms chest abdomen and pelvis legs Development Cells Physiology proteins

Disease	Congenital Neoplasms and cancer Lymphatic vessels Injury Vasculitis Other Symptoms and signs eponymous

Treatment	Procedures Drugs beta blockers channel blockers diuretics nonsympatholytic vasodilatory antihypertensives peripheral vasodilators renin–angiotensin system sympatholytic antihypertensives vasoprotectives