The Girl in the Fridge - S1-E8
Continuity mistake: When Zac and Hodgins turn to face Michael, the distance between them keeps altering drastically. (00:08:40)
The Girl in the Fridge - S1-E8
Continuity mistake: When Bones and Michael are in bed, Michael has his hands clasped over his chest. Camera cuts and they are by his side. (00:06:20)
The Girl in the Fridge - S1-E8
Continuity mistake: When talking to the doctor, he has a pen on the notes in front of him. When the scene ends, the pen has gone. (00:13:05)
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.