Continuity mistake: Booth gets a bobble-head bobbie and holds it with two hands. However, in one rear shot he is holding him with one hand. (00:01:30)
Continuity mistake: When Booth is handed the Walther PPK the Brit has both her hands on the box. When the shot changes she has one hand on her pint. (00:26:40)
Continuity mistake: When Hodgins is thrown into the back of the bin lorry the position of the blue bag changes between shots. (00:24:10)
Continuity mistake: When Booth is sleeping at the very start his head changes place on his hands. (00:00:40)
The Critic in the Cabernet - S4-E25
Continuity mistake: When interviewing the suspect over fake wine, Booth picks up the bottle. Camera changes and the bottle is back on the table. (00:34:40)
The Beaver in the Otter - S4-E24
Continuity mistake: When Bones and Booth are talking to Molly about her sleeping with Beaver, her facial expression goes from angry/upset to laughing during an instant cut. (00:14:10)
The Beaver in the Otter - S4-E24
Character mistake: Bone states the victims date of birth is in 1989 making him 20 when he died. However, earlier in the episode it's established that Beaver was 23 when he died. (00:19:10)
The Beaver in the Otter - S4-E24
Continuity mistake: Booth gives Jared the details for a job interview and puts it in his hand and the paper is completely in Jared clasp. Camera changes and now the paper is visible. (00:16:50)
The Beaver in the Otter - S4-E24
Continuity mistake: Bone holds up the evidence bag containing the bullet. In the next shot, her arm and the bag is lowered. (00:13:10)
Continuity mistake: When Booth and Bones are shown the Pimp's scar, the towel the guy is holding switches hands instantly. (00:16:30)
The Double Death of the Dearly Departed - S4-E22
Continuity mistake: When Bones and Cam drive off with the corpse in the car, the bumper reflects a studio parking lot. Not the suburban street they were just on. (00:12:10)
The Skull in the Sculpture - S4-E8
Continuity mistake: When Angela and Roxy are rekindling their relationship in the studio, Angela's hand suddenly appears by her chin with no time move it there. (00:21:30)
The Science in the Physicist - S4-E19
Visible crew/equipment: When Booth stands up to arrest Scotty and orange tape marker is visible on the floor. (00:37:30)
The Science in the Physicist - S4-E19
Visible crew/equipment: When Angela gets hits in the face with a frozen turkey, Cam rushes over to her and bends over to see if she is OK. When she does, her mic pack is visible on the waistband of her skirt. (00:19:00)
The Doctor in the Den - S4-E18
Continuity mistake: Around the 37-minute mark Bones approaches Cam with an update on the case. When she does, Cams position alters between shots. A hand suddenly appears by her mouth/chin. (00:37:30)
The Salt in the Wounds - S4-E17
Continuity mistake: When Bones and Angela are talking over lunch, Angela has her hand up by her head on one shot and then reaching out and holding the salt in the next. (00:20:40)
Continuity mistake: At the end, Parker has blood on his cheek that disappears almost instantly. (00:38:00)
Continuity mistake: Hodgins goes from holding the jewellery found in the fish tank with one hand to two hands. (00:34:50)
Continuity mistake: The blood drips on the glass in front of Bones near the end has 2 distinctive lines of blood. In the following shots the blood pattern is different. (00:27:20)
Double Trouble in the Panhandle - S4-E12
Continuity mistake: In this episode we see Booth bare-chested after the hockey match. However, he has no scars on his chest where he was shot in an earlier episode. (00:03:50)
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.