Intern in the Incinerator - S3-E6
Continuity mistake: After the autopsy we see Booth hanging around Hodgins' desk playing with two glass tubes. These tubes are horizontal and the ends of both tubes in Booth's hands. When the camera cuts, one tube is now angled upright and the end is no longer in Booth's hand and completely visible to the camera. (00:26:00)
Intern in the Incinerator - S3-E6
Continuity mistake: Cam tells everyone to forget Gormagon and look at the evidence. When she does this, Angela has her hand in her pocket. When shot changes she has both hands out of her pocket and holding a folder. (00:15:50)
Intern in the Incinerator - S3-E6
Continuity mistake: After discovering the kill site, Angela is talking to Zack. When she does, so she has her hands lowered by her waist. When the camera changes her hand is now by her chest playing with her pen. (00:15:00)
Intern in the Incinerator - S3-E6
Continuity mistake: In the interrogation room Booth chucks the book on anaesthesiology down on the table and its position changes in relation to the folder it's on. (00:27:40)
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.