[Tiva]

If you mean your lower arm it is the Radius and Ulna but for the wrist it is robably the hammate it is the easiest one to break and make it stick out. *wields a tiny hammer* Or the Scaphiod if it is towards your thumb. Or the Lunate if it is away from it but still in the area of your wrist.

Ari... it can't be her capiate... that is in the middle of her wrist, hard to break. *pulled out her human bone manual for this one*