NERVES




BRANCHES OF THE LUMBAR PLEXUS





  • Muscular T12, L1, 2, 3, 4 to psoas major and minor, quadratus lumborum and iliacus



  • Iliohypogastric and ilio-inguinal L1 to parts of internal oblique and transversus abdominis in anterior abdominal wall



  • Genitofemoral L1, 2, giving off




    • Genital branch (to cremaster muscle of spermatic cord)



    • Femoral branch




  • Lateral cutaneous of thigh L2, 3



  • Femoral L2, 3, 4, giving off




    • Nerve to pectineus



    • Anterior division, giving off




      • Intermediate femoral cutaneous



      • Medial femoral cutaneous



      • Nerve to sartorius




    • Posterior division, giving off




      • Saphenous



      • Nerves to quadriceps femoris





  • Obturator L2, 3, 4, giving off




    • Anterior branch




      • Muscular to adductor longus, adductor brevis and gracilis




    • Posterior branch




      • Muscular to obturator externus and adductor magnus





  • Accessory obturator (occasional) L3, 4 to pectineus





BRANCHES OF THE SACRAL PLEXUS





  • Superior gluteal L4, 5, S1, to gluteus medius, gluteus minimus and tensor fasciae latae



  • Inferior gluteal L5, S1, 2, to gluteus maximus



  • Nerve to piriformis S1, 2



  • Nerve to quadratus femoris and gemellus inferior L4, 5, S1



  • Nerve to obturator internus and gemellus superior L5, S1, 2



  • Posterior femoral cutaneous S2, 3



  • Sciatic nerve L4, 5, S1, 2, 3 giving off




    • Muscular branches to biceps, semimembranosus, semitendinosus and part of adductor magnus



    • Tibial nerve—see below



    • Common fibular ( peroneal ) nerve—see below




  • Perforating cutaneous, pudendal and other pelvic and perineal branches





BRANCHES OF THE TIBIAL NERVE L4, 5, S1, 2, 3



Aug 10, 2019 | Posted by in ORTHOPEDIC | Comments Off on NERVES
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