Greater Occipital Nerve C2 — FRCA Primary MCQ
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Correct answer: E — C2
The greater occipital nerve arises from the dorsal ramus of C2 (the largest dorsal ramus). It provides sensory innervation to the posterior scalp up to the vertex. Greater occipital nerve block is used for occipital headache and occipital neuralgia. The lesser occipital nerve arises from C2-C3 ventral rami.
Reference: RCoA 2021 Primary FRCA Curriculum