Lumbar Nerve | Chart

The largest vertebrae in your entire spine are found in this region to support most of your body weight and maintain balance.

| Nerve Root | Major Nerve Branch | Motor Function | Sensory Area | |------------|------------------|----------------|---------------| | | Iliohypogastric, Ilioinguinal | Abdominal wall muscles | Suprapubic & upper gluteal skin | | L2 | Genitofemoral, Lateral femoral cutaneous, Obturator, Femoral | Hip flexion (psoas), thigh adduction | Anterior/medial thigh | | L3 | Femoral, Obturator | Knee extension (quadriceps), thigh adduction | Anterior/medial thigh, distal medial knee | | L4 | Femoral, Obturator | Knee extension, ankle dorsiflexion (via L4 also to tibialis anterior) | Medial lower leg, medial foot arch | lumbar nerve chart

The lumbar nerves, labeled , are five pairs of spinal nerves that emerge from the lower back. They are essential for transmitting sensory information and motor commands between your brain and your lower body, including your hips, legs, and feet. The largest vertebrae in your entire spine are