Harbingers in a Fountain - S5-E1
Continuity mistake: Brennan has just returned from Guatemala and is back at her office. She meets Booth and the two hug. The way they hug each other differs between shots, most notably the position of Brennan's right elbow on Booth's shoulder. (00:04:00)
Harbingers in a Fountain - S5-E1
Continuity mistake: When using the ground penetrating radar, Bones says there is no such thing as a psychic. When she does she alternates from looking at Booth to looking at the radar instantly. (00:05:50)
Harbingers in a Fountain - S5-E1
Continuity mistake: When the doctor tries to ambush Bones, he has the scalpel raised at head height. Camera change and now it is much lower. (00:29:30)
Harbingers in a Fountain - S5-E1
Continuity mistake: Bones gets stabbed with a scalpel in her arm and it's bleeding profusely. However the next day she has a short sleeve top on and there is no mark or bandage on her arm. (00:30:50)
Harbingers in a Fountain - S5-E1
Continuity mistake: When Angela is checking the facial recognition, the photos actually stay the same, but just rotate spots.
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.