The Woman at the Airport - S1-E10
Plot hole: The surgical instrument that killed 'Susan' was the same one used on her jaw during her plastic surgery. 'Leslie" would not have been able to get the instrument to use to murder her and then put it back in the case, since it was still in the office in the case when Bones and Booth came to get it.
The Woman at the Airport - S1-E10
Continuity mistake: When looking at the pict (ancient warrior), the camera is panning and the hologram is spinning. However the way the pict is facing is randomly changing. Not a simple rotation. (00:18:00)
The Woman at the Airport - S1-E10
Continuity mistake: Booth congratulates Bones on the correct use of the word punt. He has a finger raised pointing at Bones. Camera cuts and now his hands are clasped. (00:01:00)
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.