extensor carpi ulnaris muscle

Extensor carpi ulnaris is a muscle located in the forearm that acts to extend and adduct the wrist. Being an extensor muscle, extensor carpi ulnaris is on the posterior side of the forearm. [WP]. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the extensor carpi ulnaris muscle is

Extensor carpi ulnaris is a muscle located in the forearm that acts to extend and adduct the wrist. Being an extensor muscle, extensor carpi ulnaris is on the posterior side of the forearm. [WP]. The atlas records it as a muscle at the organ scale in the human body.

Where the extensor carpi ulnaris muscle is

It sits in the upper limb, within the muscular system. Not positioned individually. Drawn inside the structure this dataset says contains it — the containment is asserted, the exact spot within it is not.

What the extensor carpi ulnaris muscle connects to

The atlas records 5 typed relationships for it, across 4 kinds of connection. part of forelimb zeugopod.

Supply and innervation

Innervation: radial nerve.

Also called

Also recorded as ECU muscle, extensor carpi ulnaris and musculus extensor carpi ulnaris. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001526, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

Part of: forelimb zeugopod.
A kind of: extensor muscle and forelimb zeugopod muscle.
Innervated by: radial nerve.
originates from: ectepicondyle of humerus.

Questions

Where is the extensor carpi ulnaris muscle?

What does the extensor carpi ulnaris muscle connect to?

Part of: forelimb zeugopod.

Is the extensor carpi ulnaris muscle 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.