Action affected in BENNET'S fraction of thumb?: (A) Flexion of thumb, (B) Abduction  of thumb, (C) Opposition  of thumb, (D) Adduction  of thumb
Answer is C. Bennet's fraction is the fracture of base of 1st metacarpal. Opponens pollicis has its insertion to 1st metacarpal and hence its action is lost in the following fracture.