The Hole in the Heart - S6-E22
Continuity mistake: In the port scene, just as Broadsky is getting ready to shoot Booth for the first time, Booth is constantly swapping from behind a blue container to a red container and is multiple times running to a blue container. However, there is only one blue container. (00:35:30)
The Hole in the Heart - S6-E22
Continuity mistake: In the diner at the start, when Bones is saying how it is personal, Booth has his hand up on his chin in the background. When the shot changes, his arm is lowered. (00:01:44)
The Pinocchio in the Planter - S6-E20
Continuity mistake: When Booth and Bones are in the diner talking about the liars, Booth goes from having a fork in his hand to not having one and vice versa many times. (00:22:03)
The Truth in the Myth - S6-E18
Continuity mistake: Near the end, Booth holds up the bullet in a bag. The bullet keeps swapping places in the bag between shots. (00:38:50)
The Killer in the Crosshairs - S6-E15
Continuity mistake: At the start, pay attention to the cable for Bones headphones. The position of the cable on her shoulders is constantly changing between camera angles. (00:01:30)
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.