Audio problem: When Booth knocks on Decker's front door, there is no sound of the knocking, even though the dialogue and foley bird sounds are clear. Then, a few seconds later, he knocks again and there is still no sound of the knock. (00:08:58)
Visible crew/equipment: Just after Booth gets the codeword from Decker, we see a shot of him and a boom arm can be seen moving in the door's reflection behind Booth. (00:32:30)
Continuity mistake: The position of Carl Decker's gun in relation to the head of the head of KBC systems is constantly changing between shots. (00:29:00)
Continuity mistake: When the lawyer at KBC Systems slides the file to Booth we see the file reach Booth. Camera changes and it reaches Booth again. (00:17:10)
Continuity mistake: When Zac and Bones are discussing the fractured teeth, there is a security guard in the background whose position changes between shots. (00:15:05)
Continuity mistake: When Booth has the face off with the US Marshall's the van door is shut then opens itself. (00:10:00)
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.