MRCS Q-Bank

MRCS Part A · Paper 1 & Paper 2

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Anatomy · Upper limb★ High-yield

A 20-year-old man has a 2 cm stab wound over the thenar eminence. He cannot oppose his thumb, but sensation is normal. Which nerve is injured?

AAnterior interosseous nerve
BDeep branch of the ulnar nerve
CRecurrent motor branch of the median nerve
Also tested as: thenar wasting in carpal tunnel syndrome; why palmar sensation is spared.
770+
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567
★ high-yield questions served first
27
curriculum sections across both papers
100%
of references link to a checkable source

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