<prompt> Lateral cutaneous nerve of thigh arises fromFemoral NerveLumbar PlexusObturator NerveSciatic nerve  <response>: LUMBAR PLEXUSFormed by ventral rami of LI, L2, L3, and pa of L4. These rami divide into dorsal and ventral divisions.From the ventral divisions: ilioinguinal LI, genitofemoral LI, L2 obturator L2, L3, L4, accessory obturator L3, L4 nerves.From the dorsal divisions: Lateral cutaneous nerve of thigh L2, L3, femoral nerve L2, L3, L4.Iliohypogastric contains fibers of both ventral and dorsal divisions LI.Reference: Chaurasia Volume II; 7th edition; Page no: 41 