The Death of the Queen Bee - S5-E17
Visible crew/equipment: When Hodgins rushes to speak to Angela, a yellow marker is visible on the floor. (00:07:50)
The Death of the Queen Bee - S5-E17
Continuity mistake: Booth opens the bathroom door while on the phone to Sweets. However, the door has closed itself as Booth is walking away. (00:06:50)
The Death of the Queen Bee - S5-E17
Continuity mistake: At the start, the quantity and position of the maggots on the girl's face change position between shots. (00:01:00)
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.