This real human skull is sliced along the saggital plane and opens on a hinge at the back of the cranium, exposing the sinuses, nasal conchae, and the interior of the cranium to inspection. The skull is held closed by a latch on the frontal bone. This skull is female and represents an older individual. The loss of dentition is primarily antemortem. The mandible is articulated to the cranium but removable.