sciatic nerve

A large nerve that supplies nearly the whole of the skin of the leg, the muscles of the back of the thigh, and those of the leg and foot. It begins in the lower back and runs through the buttock and down the lower limb. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the sciatic nerve is

A large nerve that supplies nearly the whole of the skin of the leg, the muscles of the back of the thigh, and those of the leg and foot. It begins in the lower back and runs through the buttock and down the lower limb. The atlas records it as a nerve at the organ scale in the human body.

Where the sciatic nerve is

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

What the sciatic nerve connects to

The atlas records 12 typed relationships for it, across 6 kinds of connection. part of lumbosacral nerve plexus.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the sciatic 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 ischiadic nerve, ischiatic nerve, nervus ischiadicus and nervus sciaticus. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001322, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: lumbosacral nerve plexus.
• A kind of: nerve.
• Innervates: skin of leg, gastrocnemius, adductor magnus and muscle of posterior compartment of hindlimb stylopod.
• contains: common fibular nerve, tibial nerve and trunk of sciatic nerve.
• branching part of: common fibular nerve and tibial nerve.
• overlaps: leg.

Questions

Where is the sciatic nerve?

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

What does the sciatic nerve connect to?

Part of: lumbosacral nerve plexus.

Is the sciatic 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.