The Couple in the Cave - S6-E2
Continuity mistake: When Dr. Clark Edison apologizes for talking about Brennan and Booth "not getting all butt naked" together, Angela is standing near Cam, but when Hodgins tells Clark "dude, a little self control" Angela is now standing on the other side of the platform beside Clark. (00:06:40)
The Couple in the Cave - S6-E2
Visible crew/equipment: In the FBI building, for the first time, we see Booth and his girlfriend walking in. As we see this, the camera moves to the right and past a PC monitor that reflects the camera operator and rig. (00:06:45)
The Couple in the Cave - S6-E2
Continuity mistake: The photo of the victims that Sweets and Booth has out in the park goes from folded and rumpled to straight and neat between shots. (00:17:50)
The Couple in the Cave - S6-E2
Continuity mistake: When Sweets holds out the picture of the victims for Mr. Winkle to look at, his grip on the paper changes between shots. (00:18:00)
The Couple in the Cave - S6-E2
Continuity mistake: At the end, when Booth and Hannah leave the bar, Booth puts some money on the bar to pay for his drink. When the shot shows Bones alone at the bar, and the shot is zooming out, the money on the bar has completely changed position from the previous shot. (00:40:50)
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.