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Iliohypogastric Nerve
Nervous System

Iliohypogastric Nerve

Nervus iliohypogastricus

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Quick Facts

Origin: First lumbar nerve (L1).

Course: Runs obliquely towards the iliac crest.

Branches: Anterior and lateral cutaneous branch.

Supply: Skin of the hypogastric and gluteal regions.

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Origin

The iliohypogastric nerve originates from the anterior ramus of the first lumbar nerve (L1).

Course

After splitting from the ilioinguinal nerve, the iliohypogastric nerve runs inferiorly and laterally towards the iliac crest. It runs between the quadratus lumborum muscle and kidney. It penetrates transversus abdominis and runs between it and internal abdominal oblique to the iliac spine.

Branches

The iliohypogastric nerve divides into the anterior and lateral cutaneous branches. It can communicate extensively with the ilioinguinal nerve.

Supplied Structures

The iliohypogastric nerve supplies sensory innervation to the skin over the hypogastric (pubic bone) region, upper thigh, and lateral gluteal region.

Learn more about this topic from other Elsevier products

Iliohypogastric Nerve

ScienceDirect image

The iliohypogastric nerve is a mixed nerve which arises from the anterior branch(es) of the L1 nerve and frequently the T12 nerve.

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Complete Anatomy

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Complete Anatomy