The Party in the Pants - S8-E22
Other mistake: The body falls from the excavator revealing there is no other debris in the excavator. However when the team get there they are told that the load in the bucket fell on the body, crushing the head. (00:03:15)
The Party in the Pants - S8-E22
Continuity mistake: At the reception for Seeley's mother's wedding during the bouquet toss, when the bouquet is in the air the stems are bound in white ribbon, when Dr. Brennan catches the bouquet the stems are loose.
The Party in the Pants - S8-E22
Continuity mistake: When Sweets is talking to the victim's girlfriend, she has a strand of hair in her hand from the rear angle and nothing in her hand in the front angle. (00:15:50)
The Party in the Pants - S8-E22
Continuity mistake: The body falls on a foreman who gets covered in blood. When she scrambles away the blood has gone. (00:03:05)
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.