Skull part is a term used to describe the various components of the skull. The JAW, which is three letters long, is the lower part of the skull that houses the teeth and forms the mouth. The OCCIPUT, seven letters long, is the back part of the skull that connects to the neck. The bregma, six letters long, is the point at the top of the skull where the two parietal bones meet. The inion, five letters long, is the bony protuberance at the back of the skull. Lastly, the CRANIUM, seven letters long, is the upper part of the skull that encloses the brain.