A fracture is often a cracked or damaged bone that happens when the force exerted over a bone is more powerful than the bone alone. Each phalanx has two centers of ossification, the initial a single for your body or shaft, and the second for the base or proximal extremity. https://www.theorthopaedicandpainpractice.com/what-are-the-different-bones-found-in-my-hand/