Femoral nerve

Femoral nerve
The lumbar plexus and its branches. (Femoral labeled at bottom left.)
Femoral sheath laid open to show its three compartments. (Femoral nerve visible in yellow.)
From L2
To L4
Innervates anterior compartment of thigh
Latin nervus femoralis
MeSH A08.800.800.720.450.250
TA A14.2.07.020
FMA 16486
Anatomical terms of neuroanatomy

The femoral nerve is a nerve in the thigh that supplies skin on the upper thigh and inner leg, and the muscles that extend the knee.


The femoral nerve is the largest branch of the lumbar plexus, and arises from the dorsal divisions of the ventral rami of the second, third, and fourth lumbar nerves (L2-L4).

It descends through the fibers of the psoas major muscle, emerging from the muscle at the lower part of its lateral border, and passes down between it and the iliacus muscle, behind the iliac fascia; it then runs beneath the inguinal ligament, into the thigh, and splits into an anterior and a posterior division. Under the inguinal ligament, it is separated from the femoral artery by a portion of the psoas major.

Other Languages
العربية: عصب فخذي
azərbaycanca: Bud siniri
español: Nervio femoral
فارسی: عصب رانی
français: Nerf fémoral
italiano: Nervo femorale
Nederlands: Dijzenuw
日本語: 大腿神経
polski: Nerw udowy
svenska: Lårbensnerv