Continuity mistake: Angela asks Bones what the rush is. When she does, Bones' ponytail is down her back. Camera changes angle and now it's over her shoulder without moving her head. (00:12:45)
Continuity mistake: When Booth is interviewing The Man in the Wall, he is stood to the side of the door. Camera changes and now he is in the middle of the door. (00:33:50)
Continuity mistake: We see Bones draw a chalk outline on the floor and it is fairly faint. When we next see it, the lines are a lot more refined. (00:30:30)
The Plain in the Prodigy - S5-E3
Continuity mistake: Near the start, Cam is carrying sunglasses in her hand; suddenly they are on her face. (00:03:20)
The Woman in the Garden - S1-E13
Continuity mistake: Booth and Brennan arrive at the crime scene in the beginning of the show. After she has confirmed that the bones in the trunk belonged to a woman, a black car drives by and shots are fired. At first, the trunk of the car is less than halfway opened. Cut to the next shot and the trunk is fully opened. (00:02:10)
Harbingers in a Fountain - S5-E1
Continuity mistake: Brennan has just returned from Guatemala and is back at her office. She meets Booth and the two hug. The way they hug each other differs between shots, most notably the position of Brennan's right elbow on Booth's shoulder. (00:04:00)
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)
The Priest in the Churchyard - S2-E17
Continuity mistake: At the diner, after Dr. Gordon has told Bones and Booth the problem with their relationship, the two shares a triumphant hand slap. Bones' glass refills itself between shots.
The Girl in Suite 2103 - S2-E6
Continuity mistake: When Booth and Brennen are questioning the Senator's son, the cap on the bottle of water keeps switching from being on and being off between shots.
The Graft in the Girl - S1-E20
Continuity mistake: The assistant transplant coordinator tells Bones that another woman, Kelly DeMarco, had the same bone graft donor as Amy's. In the scene where they are analyzing the bone from Ms. DeMarco, Zach says she 'died of lung cancer 2 months ago.' Less than 10 seconds later, Booth says that she 'never smoked a cigarette in her whole life, only to die of lung cancer 8 months ago.' (00:14:50)
The Critic in the Cabernet - S4-E25
Continuity mistake: Hodgins and Fisher are discussing how hard it is to remove wine stain. Hodgins' rubber gloves are very dirty. When Fisher realizes how to clean the bones, Hodgins' gloves are much cleaner, only stained around the finger tips.
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)
Stargazer in a Puddle - S2-E21
Continuity mistake: In the establishing shot of the church where Angela and Hodgins are having their wedding, the walls are all white. When they flee the wedding, the exteriors are red brick. (00:36:00)
The Knight on the Grid - S3-E8
Continuity mistake: Amy comes to see Brennan at night to tell her about her daughter's sickness. There are a bunch of letters on the kitchen counter. The envelopes move around in between shots, most noticeably the brown one. (00:03:20)
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.