Inferior mesenteric vein

Vein: Inferior mesenteric vein

The portal vein and its tributaries. The superior mesenteric vein and splenic vein, into which the inferior mesenteric vein empties. Leinal vein is an old term for splenic vein. Anatomical position.

Superior and inferior duodenal fossæ.
Latin	vena mesenterica inferior
Gray's	subject #174 681
Drains to	splenic vein
Artery	inferior mesenteric artery
Dorlands/Elsevier	v_05/12851027

In human anatomy, the inferior mesenteric vein (IMV) is a blood vessel that drains blood from the large intestine. It usually terminates when reaching the splenic vein, which goes on to form the portal vein with the superior mesenteric vein (SMV). Anatomical variations include the IMV draining into the confluence of the SMV and splenic vein and the IMV draining in the SMV.

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The IMV lies to the right of the similarly name artery, the inferior mesenteric artery, which originates from the abdominal aorta.

Tributaries

Tributaries of the inferior mesenteric vein drain the large intestine, sigmoid colon and rectum and include the

left colic vein
sigmoid veins
superior rectal vein
rectosigmoid veins

Additional images

v • d • e Veins of the torso
Coronary	coronary sinus (great cardiac, left marginal, small cardiac, middle cardiac, posterior of the left ventricle, oblique of the left atrium) • anterior cardiac (right marginal) • pulmonary
Thorax/ SVC	brachiocephalic: inferior thyroid - thymic - internal thoracic (anterior intercostal, superior epigastric) - left superior intercostal - supreme - vertebral - internal jugular - subclavian (axillary: lateral thoracic, thoracoepigastric) - pericardiacophrenic azygos: right superior intercostal - bronchial - intercostal/posterior intercostal 5-11 - accessory hemiazygos/hemiazygos - superior phrenic
Vertebral column	vertebral venous plexuses (external, internal) • spinal (posterior, anterior) • basivertebral • intervertebral
Abdomen/ IVC	to IVC (some to renal vein on left): inferior phrenic - hepatic - suprarenal - renal - gonadal (ovarian ♀/testicular ♂, pampiniform plexus ♂) - lumbar - common iliac to azygos system: ascending lumbar (subcostal)
Pelvis/common iliac	median sacral vein external iliac: inferior epigastric - deep circumflex iliac vein internal iliac - posterior: iliolumbar - superior gluteal - lateral sacral internal iliac - 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 system/ portal vein	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)
fetal	ductus venosus • umbilical

Categories: Veins | Abdomen

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Inferior_mesenteric_vein". A list of authors is available in Wikipedia.