The Widow's Son in the Windshield - S3-E1
Continuity mistake: When Booth and Cam are talking about hiring Clark, Cam has her hands in a bowl of peanuts in one shot and holding a beer bottle in the next. (00:09:10)
The Widow's Son in the Windshield - S3-E1
Continuity mistake: Just as Booth learns that a cannibal has eaten the victims face, the amount of sandwich he has left changes between shots. (00:05:40)
Stargazer in a Puddle - S2-E21
Continuity mistake: Max asks Bones to try the ring on and Bones has her arms by her side. As the shot changes she now has her arms crossed in front of her and on the table. (00:09:45)
Stargazer in a Puddle - S2-E21
Continuity mistake: The way Max holds out the ring for Bones changes between the long shot and the extreme closeup. (00:09:30)
The Glowing Bones in the Old Stone House - S2-E20
Continuity mistake: When speaking to the husband in the kitchen and saying about going over the books, the husband has his hand up to his head in one shot and lowered in the immediate following shot. (00:18:30)
The Glowing Bones in the Old Stone House - S2-E20
Visible crew/equipment: At the start as Bones says about how Angela turned Hodgins down, there is a clear shot of Bones' top and a microphone visible just inside it. (00:01:00)
The Killer in the Concrete - S2-E18
Continuity mistake: When the bounty hunter sits down in the diner, booths grip on his spoon changes between shots. (00:08:30)
The Priest in the Churchyard - S2-E17
Audio problem: When Father Sands asks Booth if he does all his investigations based on rumour his mouth doesn't move in the over the shoulder shot. (00:29:50)
The Priest in the Churchyard - S2-E17
Continuity mistake: When Bones is saying about the yew trees near the start, Booth puts his hand up to his mouth to hide him saying shut up. His hand is empty in one shot and got a piece of paper in the next. (00:06:20)
The Priest in the Churchyard - S2-E17
Continuity mistake: When handed the sketch in the rose garden, the priest has some secateurs in his right hand which are not there in the closeup of the sketch. (00:05:30)
The Boneless Bride in the River - S2-E16
Visible crew/equipment: When we first see both sets of remains on the table at the Jeffersonian, Angela walks up to the tables and a tape marker is visible on the floor by her feet. (00:31:40)
The Boneless Bride in the River - S2-E16
Visible crew/equipment: When talking to the directors of the funeral home, Booth stands up from his desk and walks behind the 2 people. As he does so, a blue tape marker is visible on the floor by Booth's desk. (00:29:50)
The Boneless Bride in the River - S2-E16
Continuity mistake: Zack identifies the bone as belonging to a male who died 2 years ago of cancer. Booth, when questioning the parents say's it was 3 years ago they buried their son and the parents agree. (00:25:00)
The Boneless Bride in the River - S2-E16
Visible crew/equipment: When examining the hip bone for the 1st time, behind Booth on the floor is a black tape marker level with the ladder. (00:19:50)
Continuity mistake: When they pull the body out of the water, there is some vegetation hanging by the body's face in a close up that wasn't there in a previous mid range shot. (00:03:30)
The Girl in the Gator - S2-E13
Continuity mistake: Gordon holds the form out for Booth and it's neatly folded and Booth takes it as so, However when the shot changes, the form is once again opened. (00:06:30)
The Girl in the Gator - S2-E13
Continuity mistake: At the start Dwight tells Bones that the music attracts the kids. When he does, Bones has both arms outstretched. As the camera changes, she now has one arm across her body. (00:01:00)
Revealing mistake: When taking Bones to infested trees, Ranger Rivers stands sideways. In this view, it is shown that he is not wearing the handcuffs on his wrists. Instead, they are just held in his fingertips.
The Devil in the Details - S5-E14
Continuity mistake: Hodgens hits himself on the left side of his head with the nunchucks, then later on he closes his uninjured right eye to look at the computer screen with his injured left eye.
Continuity mistake: When Booth is showing off his scar to the kid, the picture on the table is constantly changing position between shots. (00:26:10)
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.