Axillary Nerve Deltoid — FRCA Primary MCQ

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EasyAnatomyAxillary Nerve DeltoidFRCA Primary

The axillary nerve innervates which muscle?

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Correct answer: B — Deltoid

The axillary nerve (C5 C6) from the posterior cord innervates deltoid and teres minor. Its cutaneous branch supplies the regimental badge area. It is vulnerable in anterior shoulder dislocation and surgical neck of humerus fractures.

Reference: RCoA 2021 Primary FRCA Curriculum