The Man with the Bone - S1-E18
Visible crew/equipment: As Agent Booth and Bones are driving to the crime scene after stopping in the parking lot of the Assateague Island National Seashore, you can see the film crew in the reflection of Booth's SUV. (00:04:10)
The Man with the Bone - S1-E18
Visible crew/equipment: When Jack is getting the rope out of the van you can see the film crew reflected. (00:09:00)
The Man with the Bone - S1-E18
Visible crew/equipment: W|hen Booth talks to to a fisherman on the docks, we can see the camera rig rolling behind him, by the rig's shadow against the pile of equipment on the dock. (00:17:25)
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.