Human leg lumbar plexus. It supplies motor innervation to iliopsoas, pectineus, sartorius, and quadriceps; and sensory branches to the anterior thigh, medial lower leg, and posterior foot. The nerves of the sacral plexus pass behind the hip joint to innervate the posterior part of the thigh, most of the lower leg, and the foot. The superior (L4-S1) and inferior gluteal nerves (L5-S2) innervate the gluteus muscles and the tensor fasciae latae. The posterior femoral cutaneous nerve (S1-S3) contributes sensory branches to the skin on the posterior thigh. The sciatic nerve (L4-S3), the largest and longest nerve in the human body, leaves the
Nerve allograft to bridge the gap is nerve allotransplantation. Nerve allografts are prepared from donated human nerve tissue. An allograft contains many of the beneficial characteristics of nerve autograft, such as three-dimensional microstructural scaffolding and protein components inherent to nerve tissue. One of the adverse effects of nerve allotransplantation is the immunogenic response. Tissue from another human being is used to restore the defect, which can induce an immunogenic response. An immune response against an allograft or xenograft is called Transplant rejection. To prevent this rejection, new immunosuppressive techniques are performed on the graft, before it is transplanted into the receiver. The