Systemic venous system

In human anatomy, the systemic venous system refers to veins that drain into the right atrium without passing through two vascular beds (i.e. they originate from a set of capillaries and do not pass through a second set of capillaries before reaching the right side of the heart).

The term systemic venous system is often used to differentiate veins from veins that drain the pulmonary system (the pulmonary venous system) and veins that drain the digestive tract (the portal venous system).

Large veins that are considered part of the systemic venous system are the:

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

External iliac

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

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Systemic venous system

See also