LUMBAR NERVE ROOTS + sacral nerve roots

Your nerves are your body’s communication highway. Every movement… every step… every muscle contraction begins with a signal traveling from your spine. When a lumbar nerve root becomes compressed—by a bulging or herniated disc, inflammation, or narrowing in the spine—the muscles supplied by that nerve can weaken and become painful. That’s why pain, weakness, tingling, or numbness in your leg doesn’t always mean the problem is in your leg. In many cases, the true source is higher up in your lumbar spine. Here’s how specific nerve roots typically influence lower body function: • L1-L2: Hip flexion (lifting your thigh) • L3: Knee extension (straightening your knee) • L4: Ankle dorsiflexion (lifting the front of your foot) • L5: Big toe extension (lifting your big toe) • S1: Ankle plantarflexion (pointing your foot downward) • S2: Knee flexion (bending your knee) Understanding which nerve root is involved helps explain your symptoms and guides the most precise treatment approach. If you’re experiencing persistent leg pain, weakness, tingling, or numbness, the expert team at SASpine is here to help identify the source and create a personalized plan for relief. Schedule your consultation today (contact info in bio). #BackPainRelief #NervePainRelief #LowBackPainRelief #sciaticarelief #sciaticapainrelief