femoral nerve

Introduction

Nerve root: dorsal roots of L2-L4

Origin

lumbar plexus

Afferents

• seonsory: anterior femoral cutaneous branches to the skin of the anterior & medial region of the thigh

Efferents

• iliopsoas
• quadriceps
• sartorius
• pectineus

Course

• the femoral nerve arises from L2-L4, emerges from the lateral border of the psoas muscle & innervates the iliacus muscle &the extensor muscles of the knee

Pathology

Injury:

• weakness in hip flexion & knee extension
• hyporeflexia at knee

More general terms

• peripheral nerve