internal iliac vein
A vein that begins near the upper part of the greater sciatic foramen, passes upward behind and slightly medial to the hypogastric artery and, at the brim of the pelvis, joins with the external iliac to form the common iliac vein. [WP,unvetted]. Every claim on this page comes from the Leumas anatomy graph and carries its source.
What the internal iliac vein is
A vein that begins near the upper part of the greater sciatic foramen, passes upward behind and slightly medial to the hypogastric artery and, at the brim of the pelvis, joins with the external iliac to form the common iliac vein. [WP,unvetted]. The atlas records it as a vein at the organ scale in the human body.
Where the internal iliac vein is
It sits within the cardiovascular system. Positioned deliberately as part of this species body plan.
What the internal iliac vein connects to
The atlas records 12 typed relationships for it, across 4 kinds of connection. a kind of vein.
Supply and innervation
Venous drainage: deep dorsal vein of penis, iliolumbar vein, lateral sacral vein, median sacral vein, middle hemorrhoidal vein and obturator vein, and 2 more.
Also called
Also recorded as hypogastric vein, v. hypogastrica and v. iliaca interna. Searching any of those names reaches this page.
Source
Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001317, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.
- A kind of: vein.
- Connected to: common iliac vein and internal pudendal vein.
- Drains: pelvic region element.
- drains to: deep dorsal vein of penis, iliolumbar vein, lateral sacral vein, median sacral vein, middle hemorrhoidal vein and obturator vein, and 2 more.
Questions
Where is the internal iliac vein?
It sits within the cardiovascular system. Positioned deliberately as part of this species body plan.
What does the internal iliac vein connect to?
A kind of: vein.
Is the internal iliac vein the same in other species?
Leumas holds the same relationship vocabulary for every species it carries, so where another dataset records this structure you can put the two side by side on /compare.