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What is Ulnar injury in the arm leads to all except: and explain in detail?
D i.e., Adducted thumb Adductor pollicis, which is supplied by ulnar nerve, is paralysed in ulnar nerve injury. This results in loss of thumb adduction & Froment's signQ (i.e., use of FPL in place of adductors to hold paper/book between thumb & index finger)