Two Bodies in the Lab - S1-E15
Continuity mistake: Just after David rings Bones while she's at home, Booth's hand goes from open to closed instantly. (00:25:45)
Two Bodies in the Lab - S1-E15
Continuity mistake: Bones holds up a bunch of keys about halfway through. Her grip changes on the keys instantly. (00:22:35)
Two Bodies in the Lab - S1-E15
Continuity mistake: Near the end we see Hodgins driving a Mini and turn down an industrial estate. However when the camera cuts to inside the car, out the back window you can see suburban streets. (00:36:20)
Two Bodies in the Lab - S1-E15
Continuity mistake: After Bones and Booth have a little argument at the crime scene, Bones takes her Dictaphone out and starts taking notes. When doing so she is holding the Dictaphone vertically. Camera changes and now it is horizontal. (00:06:00)
Two Bodies in the Lab - S1-E15
Continuity mistake: When Booth asks Bones what happened to seeing someone across the room, eyes meeting etc, Bones hand holds of the top of her clipboard. Camera cuts and her hand has vanished. (00:03:20)
Two Bodies in the Lab - S1-E15
Continuity mistake: At the start when Dr. Goodman interrupts Bones, her hands go from the keyboard to on the arm of her chair instantly. (00:00:45)
Two Bodies in the Lab - S1-E15
Continuity mistake: At the lab, after the body has been brought in, Bones is looking at the feet in the cement. Her ponytail is messily tied. When she tells Zack that she'll be busy that night, her hair is now neatly tied. (00:02:05)
Two Bodies in the Lab - S1-E15
Continuity mistake: Booth, Hodgins, and the police are gathered outside the abandoned building and are discussing tactics. Booth has a medal around his neck. It pops in and out of his jacket between shots. (00:37:00)
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.