The axis of abduction and adduction of digits passes through the centre of: (A) 2nd metacarpal, (B) 3rd metacarpal, (C) 4th metacarpal, (D) 5th metacarpal
Answer is B. The third metacarpal is the longest and the axis of abduction and adduction passes through its centre.Ref: Chaurasia; Volume 2; 6th edition; Page no: 31