radial nerve

A nerve that supplies the upper limb, including the triceps brachii muscle of the arm, as well as all 12 muscles in the posterior osteofascial compartment of the forearm, as well as the associated joints and overlying skin. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the radial nerve is

A nerve that supplies the upper limb, including the triceps brachii muscle of the arm, as well as all 12 muscles in the posterior osteofascial compartment of the forearm, as well as the associated joints and overlying skin. The atlas records it as a nerve at the organ scale in the human body.

Where the radial nerve is

It sits in the upper limb, within the nervous system. Positioned deliberately as part of this species body plan.

What the radial nerve connects to

The atlas records 15 typed relationships for it, across 4 kinds of connection. part of arm, brachial nerve plexus and forelimb, and 1 more.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the radial nerve. 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 nervus radialis. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001492, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: arm, brachial nerve plexus, forelimb and limb.
• A kind of: nerve.
• Innervates: musculature of forelimb zeugopod, skin of forearm, triceps brachii, anconeus muscle, brachioradialis and extensor carpi radialis brevis muscle, and 3 more.
• branching part of: brachial nerve plexus.

Questions

Where is the radial nerve?

It sits in the upper limb, within the nervous system. Positioned deliberately as part of this species body plan.

What does the radial nerve connect to?

Part of: arm, brachial nerve plexus, forelimb and limb.

Is the radial nerve 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.