Superficial Palmar Arch Ulnar — FRCA Primary MCQ

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ModerateAnatomySuperficial Palmar Arch UlnarFRCA Primary

Regarding the blood supply to the hand the superficial palmar arch is primarily formed by the:

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Correct answer: C — Ulnar artery

The superficial palmar arch is primarily formed by the ulnar artery with a variable contribution from the superficial palmar branch of the radial artery. The deep palmar arch is primarily formed by the radial artery with a contribution from the deep branch of the ulnar artery. Allen's test assesses the adequacy of collateral circulation between the two systems.

Reference: RCoA 2021 Primary FRCA Curriculum