NERVE LIBRARY · Lower limb
Femoral nerve
Femoral nerve
Weak knee extension and a reduced knee reflex, with relatively preserved hip adduction.
- Roots / nucleus
- L2–L4
- Function
- Mixed
- 3D protocols
- 1 related protocols
01Course and sensory territory
Anterior thigh; the saphenous branch continues down the medial leg.
02Motor supply
Quadriceps, sartorius and iliacus.
03Localization clues
Weak knee extension and a reduced knee reflex, with relatively preserved hip adduction.
04Combine the studies
Compare saphenous SNAP, quadriceps, obturator muscles and L2–L4 paraspinals.
Explore the related 3D protocols
These retain the existing source-supported landmarks and references. The 3D model is educational; clinical work requires palpation and measured distances.
Related muscles
Connect to a clinical question
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References and further reading
- Proximal Lower Extremity Mononeuropathies ↗AAPM&R KnowledgeNow · Society educational review · Link accessed 2026-09-08
- Lumbosacral Plexopathy and Sciatic Neuropathy ↗AAPM&R KnowledgeNow · Society educational review · Link accessed 2026-09-08
Educational synthesis; independent neuromuscular specialist review is pending. Publication dates and compilation dates are distinct. This is an original teaching synthesis; consult the source for complete methods and criteria.