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Review Question - QID 8902

Thumb Collateral Ligament Injury Etiology Pathophysiology QID: 8902 (OBQ16.140)
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QID 8902 (Type "8902" in App Search)
A 27-year-old male injures his thumb during a fall onto an outstretched hand. He has pain at the MCP joint and difficulty grasping objects between the thumb and index finger. He undergoes surgery with the planned incision shown in Figure A. What muscle and corresponding nerve innervates the structure that blocks reduction of the ligament shown in Figure B?
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  • B
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  • A
  • B
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