Continuity mistake: At the funeral, Bones places a rose on top of several other roses on the coffin of the murder victim. When the victim's parents approach the coffin to place their rose on it, most of the roses have vanished. (00:39:05)
Factual error: In the opening shot of the episode they show a plane landing at an airport, and it says Dulles International Airport on the screen. There is even a nice shot of the US Capitol building in the background, the problem is that Dulles Airport is about 25 miles from Washington, if the shot is real it was filmed at Reagan National Airport. (00:00:10)
Continuity mistake: When Zac is taking photos of the bones, the shot is flipped. Note the logo and writings on his jacket. (00:07:10)
Continuity mistake: When the director is looking at the 2 photos Booth hands him, there is a shot of the two photos one on top of the other neatly. Camera changes and they are no longer neatly on top of each other. The bottom one is sticking out and should have been visible in the previous shot. (00:18:40)
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.