The Monster in the Closet - S11-E13
Continuity mistake: Karen cuts her hand in the interrogation room. Between camera angles the amount of blood changes instantly. (00:24:15)
The Head in the Abutment - S11-E19
Continuity mistake: After Hodgins asks for a drone we see Booth and Bones driving over a bridge. Camera cuts to inside the car and they are now in the middle of a town.
The Movie in the Making - S11-E18
Continuity mistake: The amount of squirt cheese on Aubrey's pop tart changes between shots. (00:32:40)
The Fight in the Fixer - S11-E15
Continuity mistake: When Bones is discussing Angela's cut off point for reconstructions, her hand goes from open and facing to the floor to pointing with one finger at the screen.
The Monster in the Closet - S11-E13
Continuity mistake: Cam finds the watch covered in cat food. Between camera angles the amount of cat food on the watch is constantly changing. (00:19:40)
The Resurrection in the Remains - S11-E5
Continuity mistake: When the pumpkin falls into the coffin, the face is facing down the body. Camera shows an overhead shot and the pumpkin face is now facing up. (00:05:05)
Answer: Since the palatine bone is a bone that helps form the mouth it has a lot to do with speaking. The shape of it differs a lot depending on your ethnic background. I would guess that they, in the show, meant that the person's bone tells that they were Japanese and that it was "made for the purpose of speaking Japanese." That's what I'd assume anyway. I've studied molecular biology though, so I'm not an expert on bones.