The Gamer in the Grease - S5-E9
Continuity mistake: Fisher is putting a glove on his right hand when Dr Saroyan walks in. It cuts between them a few times, then we see him turning to the table to explain about the bones and neither of his hands are gloved. A short while later he turns to put on gloves - he regloves his right hand, it goes back to Dr Saroyan for a second, then back to him turning towards the table and both hands are now gloved. (00:17:20 - 00:18:20)
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)
The Man on the Fairway - S1-E14
Continuity mistake: In the restaurant near the start Booth's napkin disappears instantly. (00:09:00)
The Woman in the Garden - S1-E13
Continuity mistake: When the man who put a hit out on Bones is ambushed by Booth, Booth's grip on his face changes instantly. Note the fingers in front/behind his ear. (00:39:30)
The Woman in the Garden - S1-E13
Continuity mistake: The sketch that is shown to the senator goes from creased and folded to perfectly flat and smooth. Her grip on the paper also changes instantly. (00:12:30)
The Woman in the Garden - S1-E13
Continuity mistake: At the very start Booth has his hands by his side then on his hips instantly. (00:00:05)
The Man in the Fallout Shelter - S1-E9
Continuity mistake: When Booth calls Bones the Christmas Killer, he flips a photo over only for it to be back the way it was in the next shot without anyone touching it. (00:14:00)
The Man in the Fallout Shelter - S1-E9
Continuity mistake: Goodman passes a picture of his family to Booth. In the close up we see Booth holding the photo with 2 hands. In the long shot he is holding it with one. (00:11:00)
The Girl in the Fridge - S1-E8
Continuity mistake: When Zac and Hodgins turn to face Michael, the distance between them keeps altering drastically. (00:08:40)
Continuity mistake: Near the end we see Booth digging up some bodies. His grip on the shovel changes instantly from both hands at the top of the shovel handle to one half way down the handle. (00:36:20)
Continuity mistake: When going through the photos, Bones is looking at one of the victim in a field. Camera changes and now it is one of the victim's face close up. (00:11:00)
Continuity mistake: The lawyer gives Booth the file on Howard Epps and he opens it with a picture on the left hand (screen right) side. Camera shows the file open and that photo is now on the right under a bulldog clip there fore making it impossible the photo fell and swapped sides when opened. The picture also rotates. (00:03:50)
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: At the start Bones starts to put the roof down on her car. Camera cuts and the roof is instantly down. Not possible in an instant cut. (00:01:40)
Continuity mistake: When Zac is signing for his package, the courier has her hands on the top of the box. Camera cuts and they are no longer on the box. (00:18:05)
Continuity mistake: At the end after shooting Farheed, we see Booth with both hands on the railing. Camera shows a secret service operative opening the camera bag containing the bomb then cuts back to Booth who suddenly has his gun back in his hands and raised as if he had just fired. (00:38:50)
Continuity mistake: When Bones and Booth are arguing in the bar about the wife having an affair, Bones has chopsticks in her hand that disappears. (00:18:00)
Continuity mistake: Bones holds a red bag that is scrunched up for Angela at the start. Camera cuts and the bag is unfolded and being held open by Bones. (00:03:00)
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.