Bones give your body its structure. Your bones work with your muscles and joints to hold your body together and allow it to move. There are 27 bones in each of your hands, for a total of 54 hand and wrist bones. This is quite a lot when you consider that most adults have a total of 206 bones – about 25% of your bones are in your hands!
Having so many hand bones allows us to bend and flex our hands in all the ways we need to.