In this tutorial we will draw the neuroanatomy of the lumbosacral plexus. Key structures: ilioinguinal nerve, iliohypogastric nerve, genitofemoral nerve, femoral triangle, cremaster muscle, lateral femoral cutaneous nerve, obturator nerve, thigh adductor muscles, femoral nerve, superior gluteal nerve, gluteus medius muscle, inferior gluteal nerve, gluteus maximus muscle, sciatic nerve, peroneal nerve, tibial nerve, posterior femoral cutaneous nerve, pudendal nerve, reproductive sphincters.