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Intercostal Nerve Block Angle of Rib — FRCA Primary MCQ

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EasyAnatomyIntercostal Nerve Block Angle of RibFRCA Primary

Regarding the anatomy of the thorax intercostal nerve blocks are performed at the angle of the rib. The intercostal nerve lies:

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Correct answer: D — In the costal groove on the inferior border of the rib below the vein and artery (VAN from above)

The intercostal nerve lies in the costal groove on the inferior border of the rib. From superior to inferior: Vein / Artery / Nerve (VAN). The nerve is the most inferior and most exposed structure. Intercostal nerve block is performed at the angle of the rib (most posterior accessible point) where the groove is deepest and the nerve most accessible.

Reference: RCoA 2021 Primary FRCA Curriculum