The Spark in the Park - S9-E11
Continuity mistake: The box the dad draws around the questions at the end changes design. Note the long line on the right hand side. (00:44:50)
The Ghost in the Killer - S9-E12
Continuity mistake: When Trent and Jack are talking about when they were kids, the sweat stains on Trent's top keep changing in size. (00:27:10)
The Drama in the Queen - S9-E23
Continuity mistake: When we see the mum climbing down the ladder at the start, the way it's attached to the side of the well changes between shots. (00:01:40)
The Baker in the Bits - S10-E13
Continuity mistake: When Aubrey is at the victims apartment, the room mate grabs a towel and puts it over one shoulder. Camera changes and it's over both. (00:09:30)
The Murder in the Middle East - S10-E19
Continuity mistake: In all shots of Cam talking on her phone to Arastoo after the first, what's on the bottom of the phone is different to the first. Later, when she has the phone is on the table, what was on the bottom in the later shots is at the top of the phone, suggesting at some point she started talking on it upside down. (00:02:53 - 00:04:05)
The Resurrection in the Remains - S11-E5
Continuity mistake: When the pumpkin falls into the coffin, the face is facing down the body. Camera shows an overhead shot and the pumpkin face is now facing up. (00:05:05)
The Monster in the Closet - S11-E13
Continuity mistake: Cam finds the watch covered in cat food. Between camera angles the amount of cat food on the watch is constantly changing. (00:19:40)
The Monster in the Closet - S11-E13
Continuity mistake: Karen cuts her hand in the interrogation room. Between camera angles the amount of blood changes instantly. (00:24:15)
The Fight in the Fixer - S11-E15
Continuity mistake: When Bones is discussing Angela's cut off point for reconstructions, her hand goes from open and facing to the floor to pointing with one finger at the screen.
The Movie in the Making - S11-E18
Continuity mistake: The amount of squirt cheese on Aubrey's pop tart changes between shots. (00:32:40)
The Head in the Abutment - S11-E19
Continuity mistake: After Hodgins asks for a drone we see Booth and Bones driving over a bridge. Camera cuts to inside the car and they are now in the middle of a town.
The Final Chapter: The Flaw in the Saw - S12-E6
Continuity mistake: At the start the intern puts the liver to one side, which promptly disappears.
The Final Chapter: The Day in the Life - S12-E11
Continuity mistake: In Brennan's segment of the episode, the cake on Angela's fork disappears after Brennan points out that saying Booth's aura is "as clean as it's ever been" was sarcasm.
The Final Chapter: The End in the End - S12-E12
Continuity mistake: When Booth finds Bones she has a piece of glass on her face that turns into 3 pieces then back to 1. (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.