Femoral triangle — FRCA Primary MCQ

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ModerateAnatomyFemoral triangleFRCA Primary

A nerve block is performed lateral to the femoral artery below the inguinal ligament. Which anatomical structure is described?

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Correct answer: C — Femoral nerve

The femoral nerve lies lateral to the femoral artery. Obturator nerve is less appropriate because it would fit a different clinical clue or a separate anaesthetic problem. Radial nerve is less appropriate because it would fit a different clinical clue or a separate anaesthetic problem. Internal superior laryngeal nerve is less appropriate because it would fit a different clinical clue or a separate anaesthetic problem. T6 dermatome is less appropriate because it would fit a different clinical clue or a separate anaesthetic problem. In Primary FRCA anatomy, the tested structure should explain the block, airway sign or regional complication in the stem.

Reference: Ellis, Feldman & Harrop Anatomy for Anaesthetists; Primary FRCA textbooks