Q. Which structures of the body have more bones for their size than any other part of the body?

Hand and wrist have more bones in them for their size than any other part of body.  There  are  8  carpals  in  wrist  between  forearm  and  palm  of  the hand; 5 metacarpal bones which form the palm of hand between the wrist, thumb, and fingers; and 14 phalanges or finger bones. Presence of many small bones in the wrist  and  hand  with  many  movable  joints  between them  makes  human  hand highly manoeuvrable and mobile.