Iliohypogastric T12-L1 — FRCA Primary MCQ
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Correct answer: A — T12-L1
The iliohypogastric nerve arises from T12-L1 (the first branch of the lumbar plexus). It provides motor supply to the internal oblique and transversus abdominis and sensory supply to the skin over the hypogastric region and lateral gluteal area. It is at risk during appendicectomy and iliac crest bone graft harvest.
Reference: RCoA 2021 Primary FRCA Curriculum