iliohypogastric nerve

Origin

• ventral ramus of L1
• the iliohypogastric nerve arises together with the ilioinguinal nerve from the ventral ramus of L1

Innervation

• abdominal muscles
• skin of the suprapubic & inguinal regions

Course

• it enters the abdomen posterior to the medial arcuate ligaments & passes inferolaterally, anterior to the quadratus lumborum muscle, penetrates the transversus abdominis muscle near the anterior superior iliac spine & passes through the internal oblique & external oblique muscles to supply the skin of the suprapubic & inguinal regions.

More general terms

• peripheral nerve

Additional terms

• ilioinguinal nerve