The Movie in the Making - S11-E18
Character mistake: Near the start Bones calls Dr. Vasiri, Dr. Resedi. This is a mistake as she has worked with Dr. Vasiri for a number of years and never calls him Dr. Resedi.
The Doom in the Boom - S11-E10
Character mistake: In the last scene of the episode, the hospital doctor comes into a waiting room to give a status on Hodges to his coworkers. She is carrying two large x-ray films. Bones says "Are those the MRIs? Let me see them." Bones would have known that they were x-ray films and not MRI scans, which would have been printed on paper.
The Head in the Abutment - S11-E19
Character mistake: Hodgins flies a decapitated human head via drone all the way from the crime scene to the Jeffersonian. A distance of several miles over city and urban landscapes. This would comprise all the evidence and be a massive risk to public health. Dr. Hodgins would know how much it would mess up the evidence since his area of expertise is particulates, and insects, both of which would be compromised. (00:28:30)
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.