Knuckles in the back of the hand help the fingers to maneuver ahead and backward. They're very important in overcome sporting activities like wrestling and boxing. You do have a condition within the fingers, hands, and wrists that have not enhanced with uncomplicated actions or Original treatment by your GP. https://www.theorthopaedicandpainpractice.com/what-are-the-different-bones-found-in-my-hand/