The Soldier on the Grave - S1-E21
Visible crew/equipment: When Booth leans down to greet Hank, his mic wire is visible against his white shirt under split in his jacket. (00:11:30)
Other mistake: Hodges and Angie find a piece of paper buried with Bones' mother and they tell Bones that the date of the movie is September 22, 1993. The ticket has two dates, September 22, 1993 and in two different places it says April 22, 1993. The Fugitive was released August 6th, 1993.
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.