The Tough Man in the Tender Chicken - S5-E6
Continuity mistake: The amount of paint on Wendel's hat keep changing drastically. Most noticeable is when Bones stops him spinning and leans him forward. (00:34:15)
The Tough Man in the Tender Chicken - S5-E6
Continuity mistake: The position of the pig picture Angela places on the item Hodgins is holding changes places. First it's resting on 2 spikes then 3. (00:31:05)
The Tough Man in the Tender Chicken - S5-E6
Continuity mistake: As Hodgins says he will chip in for the pig, the item he's holding has 4 items sticking out of it. When the shot changes, these items change position. (00:31:00)
The Tough Man in the Tender Chicken - S5-E6
Continuity mistake: When Booth is on the phone to Darma asking if they are missing a man that looks like a chicken, the way he holds the poster changes between shots. (00:07:40)
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.