A fracture is actually a cracked or broken bone that occurs once the force exerted with a bone is more robust than the bone alone. The ulnar nerve enters the hand beneath the superficial A part of the flexor retinaculum (in Guyon’s canal) after which it divides into the deep https://www.theorthopaedicandpainpractice.com/what-are-the-different-bones-found-in-my-hand/