The Titan on the Tracks - S2-E1
Continuity mistake: At the start we see Bones put her hair up into a ponytail from a high wide shot. Camera changes to ground level and she puts her hair up again. (00:01:10)
Mother and Child in the Bay - S2-E2
Revealing mistake: When Bones and Booth are driving in his SUV talking about Abraham in the Bible, you can see that Bones' side window is lowered almost all the way down, but her hair is perfectly still and not being blown around as it normally would be.
Other mistake: At the start, when Hodgins gives his findings at the scene a fly can be seen crawling over the camera lens. (00:02:00)
Continuity mistake: At the diner, before Mrs. Duncan comes to confess about murdering her husband, Brennan takes a sip of tea. Her glass at this point is less than half full. When Mrs. Duncan walks in, the same glass is now almost full.
The Blonde in the Game - S2-E4
Character mistake: In season 2, episode 4, when they find the girl buried under the cross, you can see her face, which means she was on her back, because her neck couldn't possibly bend that far around without it being noted by Dr. Brennan later in the episode (which it isn't). Later in the episode, however, Special Agent Booth tells Epps' wife that she was found buried face down. (00:14:15 - 00:17:30)
The Blonde in the Game - S2-E4
Continuity mistake: When Booth and Bones are discussing Helen Majors, Booth gets a phone call and he holds the phone to his left ear with his right hand. In the following shot, he is holding the phone in his left hand. (00:21:05)
The Girl in Suite 2103 - S2-E6
Continuity mistake: When Angela and Hodges are working out the size of the silhouette on the wall, as Angela says "which I deny", she's got a relatively serious look on her face. We then cut to a shot from the other side of her, and she's suddenly smiling.
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.
Revealing mistake: Near the end we see the black FBI vehicle driving over the mine dust and there are tyre marks from previous takes visible. (00:34:20)
Revealing mistake: When Booth is running down the hill, there are marks in front of him from previous takes. (00:36:00)
Continuity mistake: Booth chucks Parker's ice cream on the floor along with the napkin. When Bones picks up the napkin the ice cream has gone. (00:20:00)
Other mistake: Bones produces a gun and states that she got it herself. However it is explained in earlier episodes she is not legally allowed a weapon due to being arrested for shooting a suspect.
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)
The Girl in the Gator - S2-E13
Continuity mistake: After Booth shoots the clown an additional bullet hole appears in the clown's head. (00:01:30)
The Girl in the Gator - S2-E13
Visible crew/equipment: At the start, the ice cream van stops and Booth shoots the clown. If you look at the road there is an orange tape marker visible where the van stops. (00:02:15)
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: The form Booth holds out for Gordon is fully opened. Camera changed and now the form is half folded. (00:06:45)
The Girl in the Gator - S2-E13
Factual error: In the interview room with the father, they show him the locket which is in an evidence bag. We next see the father holding and opening the locket. There is no way they would allow him to open and remove the locket from the evidence bag. (00:07:15)
The Man in the Mansion - S2-E14
Continuity mistake: When we see Hodgins look at the picture he takes the frame backing off exposing some writing. We then get a closeup of the writing which has now completely changed. (00:04:50)
The Man in the Mansion - S2-E14
Continuity mistake: When Booth takes Hodgins to the mansion to collect samples he has a chat with Clarissa. When he does so, note his grip on the top of his coffee mug. (00:19:20)
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.