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Iliohypogastric nerve

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Title: Iliohypogastric nerve  
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Subject: Lumbar plexus, Cutaneous innervation of the lower limbs, Abdominal internal oblique muscle, Human leg, Posterior labial nerves
Publisher: World Heritage Encyclopedia

Iliohypogastric nerve

Iliohypogastric nerve
Plan of lumbar plexus. (Iliohypogastric visible at upper left.)
The lumbar plexus and its branches. (Iliohypogastric visible at upper left.)
Latin Nervus iliohypogastricus
From lumbar plexus
Innervates Sensory: Skin over the lateral gluteal region and above the pubis[1]
Motor: internal and transverse abdominal muscles
Anatomical terms of neuroanatomy

The iliohypogastric nerve is the superior branch of the anterior ramus of spinal nerve L1 (one of the lumbar nerves) after this nerve receives fibers from T12 (subcostal nerve). The inferior branch is the ilioinguinal nerve.

It emerges from the upper part of the lateral border of the psoas major, and crosses obliquely in front of the quadratus lumborum to the iliac crest, running posterior to the kidneys.

It then perforates the posterior part of the transversus abdominis, near the crest of the ilium, and divides between that muscle and the obliquus internus abdominis into a lateral and an anterior cutaneous branch.


  • Branches 1
    • Communication 1.1
  • Additional images 2
  • References 3
  • External links 4


Branches include:


The iliohypogastric nerve communicates with the subcostal nerve and ilioinguinal nerves.

Additional images


This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

  1. ^

External links

  • Iliohypogastric_nerve at the Duke University Health System's Orthopedics program
  • Atlas image: abdo_wall70 at the University of Michigan Health System - "Posterior Abdominal Wall, Dissection, Anterior View"
  • Anatomy photo:35:05-0101 at the SUNY Downstate Medical Center - "Anterior Abdominal Wall: The Iliohypogastric and IlioInguinal Nerves"
  • Anatomy photo:40:17-0101 at the SUNY Downstate Medical Center - "Posterior Abdominal Wall: Nerves of the Lumbar Plexus"
  • Anatomy image:7055 at the SUNY Downstate Medical Center
  • Anatomy image:7221 at the SUNY Downstate Medical Center
  • Anatomy image:7257 at the SUNY Downstate Medical Center
  • posteriorabdomen at The Anatomy Lesson by Wesley Norman (Georgetown University) (posteriorabdmus&nerves)
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