vein

Any of the tubular branching vessels that carry blood from the capillaries toward the heart. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the vein is

Any of the tubular branching vessels that carry blood from the capillaries toward the heart. The atlas records it as a vein at the organ scale in the human body.

Where the vein is

It sits within the cardiovascular system. Only the system is known. The position shown carries almost no spatial information.

What the vein connects to

The atlas records 168 typed relationships for it, across 7 kinds of connection. a kind of venous blood vessel.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the vein. Only a minority of structures carry those edges here, so an empty answer means nothing has been recorded — not that there is nothing to record.

Also called

Also recorded as venous subtree, venous vessel, venous tree organ part, vascular element, vena and venae. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001638, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• A kind of: venous blood vessel.
• subtype: accessory hemiazygos vein, accessory vertebral vein, anterior cardinal vein, anterior ciliary vein, anterior intercostal vein and anterior jugular vein, and 152 more.
• contains: endothelium of vein, tunica adventitia of vein, tunica intima of vein, tunica media of vein and venous valve.
• develops into: transformed vein.
• located in: venous blood.
• composed of: venous plexus.
• connects: venule.

Questions

Where is the vein?

It sits within the cardiovascular system. Only the system is known. The position shown carries almost no spatial information.

What does the vein connect to?

A kind of: venous blood vessel.

Is the 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.