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)
The Twisted Bones in the Melted Truck - S6-E8
Continuity mistake: At the end the amount of chocolate ice cream on Parker's chin keeps changing.
The Blackout in the Blizzard - S6-E16
Continuity mistake: The scene in which Wendell and Hodgins use scotch tape to take an x-ray has the number of photographic panels on which the x-ray appears switching from four (throughout most of the scene) to five (in the close up of the x-ray appearing).
The Twisted Bones in the Melted Truck - S6-E8
Continuity mistake: At the end, when Kathy is saying she would be out in a year tops as she's from a broken home, she has a clump of hair flowing freely in the middle of her forehead. When the shot changes, this hair is now tidy and not flowing in the wind. (00:39:00)
The Twisted Bones in the Melted Truck - S6-E8
Continuity mistake: When Bones and Booth are talking about Hannah meeting Parker, there is a building to Bones' left (screen right); however, during one of the cuts, the buildings on that side have turned into a street. (00:18:10)
The Bones That Weren't - S6-E5
Continuity mistake: When Derek takes Booth's watch, he holds it up over his index finger to show Booth. When Booth grabs the watch, Derek is now holding it with his thumb and index finger. (00:18:40)
The Maggots in the Meathead - S6-E3
Continuity mistake: The two slivers that Fisher removes from the skull are placed under a microscope. However, the items move on the screen between the three different camera angles. (00:31:20)
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 Mastodon in the Room - S6-E1
Continuity mistake: When Hodgins and Angela are talking in the diner at the end, Hodgins' hand keeps moving when resting his head in it. (00:38:20)
The Blackout in the Blizzard - S6-E16
Continuity mistake: Toward the end in the elevator, Bones says there may be a way out by jumping on the seats to break them because of the rusted bolts between the 1st and 2nd seats, and they break. But at the end in Booth's apartment they are sitting in the seats, and they are numbered 1-4, but the seats look like they broke between seats 1 and 2. When the seats are intact there are 5 of them, so it should have been seats 2-5 that were intact at the end.
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)
Continuity mistake: When Cam sits down with some catalogues for Michelle at the start, Michelle's hands change place between camera angles. In one shot, she has her left arm out straight, and in the next, she is fiddling with her right hand. (00:07:00)
The Shallow in the Deep - S6-E6
Continuity mistake: At the end, when in the diner, there is a very long shot of Daisey and Sweets, followed by a close-up. Their positions change between these angles. Most noticeably, Daisey's right arm. (00:39:20)
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)
The Mastodon in the Room - S6-E1
Continuity mistake: In the diner, when looking at the X-Ray with a glass, Dr. Brennan's grip on the glass changes. Note the lip. (00:25:30)
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.