summary for the Femoral Nerve of Lumber plexus

1. Femoral Nerve By: Huda Almubarak

2. Lumber Plexus Is formed insidePsaos Major with root value (L1, L2, L3, L4) Femoral Nerve Obturator Nerve

3. Psaos Major Origin: side of (T2-L5) vertebra and there’s discs. Insertion: lassertrochanter of femur

4. Psaos Major Innervations: Anterior rami of lumber nerve (L1, L2, L3) Action: Flexing + stabilizing hip joint

5. Femoral nerve - Arises from the lumbar plexus - Descends within the groove between the psoasmajor and iliacusmuscles - Lateral to the femoral artery as it enters the thigh

7. Femoral Nerve Supply the frontal area of the thigh Branch: Anterior cutaneus branch. Sapheneus nerve.

8. Anterior cutaneus branch. Sensation of the skin of the anterior and median aspect of the thigh Injury: loss of sensation and sympathetic

9. Sapheneus nerve Sensation of the skin of patella and median side of the leg and foot Injury: loss of sensation and sympathetic

10. Sapheneus

11. The Dermatome of the leg

12. Femoral nerve injury Paralysis: Quadriceps femoris muscle. Deformity: Flexion of the knee Sensation + Sympathetic: loss of sensation and sympathetic of skin of the anterior and median aspect of the thigh and the skin of patella and median side of the leg and foot

13. Femoral nerve entrapments Herniation of inter vertebral discs (L2/L3 or L3/L4) At the level of inguinal ligament (femoral nerve neuropathy) This may result in: Weak extension of the knee Weak patellar tendon reflex (L4 level reflex) Cutaneous sensory changes (anterior thigh & L4 dermatome)