Iliohypogastric nerve
| Nerve: Iliohypogastric nerve | |
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| Plan of lumbar plexus. (Iliohypogastric visible at upper left.) | |
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| The lumbar plexus and its branches. (Iliohypogastric visible at upper left.) | |
| Latin | nervus iliohypogastricus |
| Gray's | p.950 |
| Innervates | Sensory: Skin over the lateral gluteal region and above the pubis [1] Motor: internal and transverse abdominal muscles |
| From | lumbar plexus |
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
Branches include:
- Lateral cutaneous branch of iliohypogastric nerve
- Anterior cutaneous branch of iliohypogastric nerve
Communication
The iliohypogastric nerve communicates with the subcostal nerve and ilioinguinal nerves.
Additional images
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Nervous system
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Cutaneous distribution of thoracic nerves.
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Intercostal nerves, the superficial muscles having been removed.
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Deep and superficial dissection of the lumbar plexus.
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Cutaneous nerves of the right lower extremity. Front and posterior views.
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Cutaneous nerves of the right lower extremity. Front and posterior views.
References
External links
- Iliohypogastric_nerve at the Duke University Health System's Orthopedics program
- abdo_wall70 at the University of Arkansas for Medical Sciences - "Posterior Abdominal Wall, Dissection, Anterior View"
- 35:05-0101 at the SUNY Downstate Medical Center - "Anterior Abdominal Wall: The Iliohypogastric and IlioInguinal Nerves"
- 40:17-0101 at the SUNY Downstate Medical Center - "Posterior Abdominal Wall: Nerves of the Lumbar Plexus"
- SUNY Anatomy Image 7055
- SUNY Anatomy Image 7221
- SUNY Anatomy Image 7257
- Anatomy at MUN nerve/lumbnerv
- posteriorabdomen at The Anatomy Lesson by Wesley Norman (Georgetown University) (posteriorabdmus&nerves)
This article incorporates text from a public domain edition of Gray's Anatomy.
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