Gross Anatomy USMLE Step 1 Practice Question
A 22-year-old man sustains a laceration to the dorsolateral wrist on broken glass. Vital signs: BP 118/76, HR 92, RR 16, Temp 37Ā°C, SpO2 98%. Brisk bleeding occurs from a vessel normally traversing the anatomic snuffbox before contributing to the deep palmar arch. Physical examination reveals intact median and ulnar nerve function. Doppler ultrasound confirms arterial flow disruption in the snuffbox region. Which vessel is most likely injured?
Answer choices
- AUlnar artery
- BAxillary artery
- CProfunda brachii artery
- DBrachial artery
- ERadial arteryCorrect answer
- FAnterior interosseous artery
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