Trivia: At around 5 mins 11 seconds into the episode, Vincent Nigel-Murrey and Dr. Saroyan are discussing the bones on the forensic platform. In the background of a shot of Vincent, the x-ray on the screen is of Homer Simpson's head in the middle of the screen, instead of a real human skull.
Trivia: When Max and Temperence go out to lunch with Temperence's cousin Margaret, Max comments that the pair are "practically sisters," and later when Margaret meets Booth, Booth asks if she is Bones' sister. The actress playing Margaret is actually Emily Deschanel's sister, Zooey.
Trivia: At the diner in Roswell, Booth sees a picture of Dave Roberts, the host of the children's morning radio show "Rocketship 7", and mentions the show by name. Roberts is actually David Boreanaz's father.
Trivia: This episode pays homage to The X Files, even using the X Files theme tune for a ring tone. It also features Dean Haglund, playing Blaine Miller who owns the alien themed cafe. Haglund also played Langley, one of the lone gunmen from The X Files.
Trivia: Dean Haglund, who plays the restaurant owner in this episode, was one of the Lone Gunmen, Richard Langley, in the X-Files series itself.
Trivia: Aside from the Homer Simpson x-ray on the forensics platform, Dan Castellaneta, the voice of Homer Simpson has a cameo at the start as officer Novarro. (00:02:40)
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.