Iliohypogastric and Ilioinguinal Nerve
Iliohypogastric Nerve--Branch of 1st lumbar nerve Close to iliac crest, nerve divides into Lateral branch – pierces external and internal oblique muscle, passes posteriorly to supply skin of gluteal region Anterior branch – pierces internal oblique at 2.5 cm medial to anterior superior iliac spine Pierces external oblique about 3 cm above superficial inguinal ring