Visible crew/equipment: When in the interrogation room after it is determined that The Man in the SUV is a victim, you can see a camera shadow on the wall by Bones. This shadow moves when no-one else does. (00:15:00)
Visible crew/equipment: When at the judge's home, Bones explains about needing the body exhumed. In the picture behind her there is a black line reflected from a boom arm. This can't be from anything in the house as the camera and people stay still but the reflection goes away. (00:22:15)
Visible crew/equipment: When Booth and Bones are driving at the start a square light screen is reflected in Booth's sunglasses. (00:04:40)
Visible crew/equipment: As Booth gets out of his car at the start you can see a crew member in blue jeans reflected in the paintwork. (00:05:40)
Visible crew/equipment: When Booth walks out of the bar, he puts his jacket on and his shirt rides up a bit. When it does, you can see a mic wire under his shirt. (00:36:45)
Visible crew/equipment: When Roy's father places the baseball trophy on Booth's desk, a load of people who are not in Booth's office are reflected. (00:11:30)
Visible crew/equipment: When Bones starts the interrogation with Rulz, you can see a shadow moves over Rulz' lower body despite no one moving. (00:32:55)
The Girl in the Fridge - S1-E8
Visible crew/equipment: When Bones says about her professor wanting to see the equipment there is a tape marker visible on the floor under the remains. (00:09:20)
Visible crew/equipment: Just after Booth gets the codeword from Decker, we see a shot of him and a boom arm can be seen moving in the door's reflection behind Booth. (00:32:30)
The Superhero in the Alley - S1-E12
Visible crew/equipment: At the very start the landing skid of the filming helicopter is in shot for several seconds. (00:00:10)
The Woman in the Garden - S1-E13
Visible crew/equipment: At the end when the cameras zoom in on the coffins, the crew are reflected in the brown one. (00:38:20)
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)
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)
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.