The Secret in the Soil - S3-E4
Continuity mistake: When taking her tablets near the start, she has left hand across her lap then up by her head in the next. (00:07:50)
The Secret in the Soil - S3-E4
Continuity mistake: When talking to the victims wife, the daughter givers her some tablets, and she grabs them with her left hand. The camera cuts and now they are in her right hand. (00:07:50)
The Secret in the Soil - S3-E4
Continuity mistake: Just as the gang establish it's a pitchfork Hodgins has an open file in his hands. When the camera changes, he opens the folder. (00:32:10)
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.