anatomy skills model that comes apart for learning Include the holes, sockets, canals, and a complete set of human teeth. And better shows the bones structure, texture, articulating mandible, eye sockets, sutures, internal nasal cavity, and the endocranium cavity. This didactic skull model colored all bones (bone pairs) for easy identification and use. Individual bones can be reassembled by the inconspicuous, stable connectors mounted at the simplified suture of the skull.