lumbosacral plexus

• femoral at L2-L4


  motor innervation: hip flexors, knee extensors, ab/adductors of thigh, rotation of thigh

  cutaneous innervation: skin anterolateral of thigh and medial surface of thigh
• obturator at L2-L4


  motor innervation: adductors of thigh, rotate thigh

  cutaneous innervation: medial surface of thigh
• sciatic at L4-S3


  motor innervation: flexors of knee, extensors of hip, adductors of hip

  cutaneous innervation: none