Transparent skull model that can be divided into 3

Anatomically, the human skull can be divided into 2 parts, and the skull model therefore shows the following:



1) The braincase (neurocranium), which is intended to enclose the brain and the hearing-equilibrium organ



2) The facial skeleton (viscerocranium) which surrounds the nasal cavity and forms the tooth-bearing framework around the oral cavity. The 32 teeth are also included



The braincase and facial skeleton include many different bones. Due to the transparent plastic, it is difficult to identify all the bones, even if there are different shades of color in the material.



The model is therefore not suitable for studying the degree of detail on bones and "osseous landmarks", although some are very clearly seen (e.g. processus styloideus).



The model, on the other hand, is suitable for studying the location of the brain in the braincase when a brain model is inserted.

In terms of movement, it is only relevant to mention the jaw joint. The lower jaw bone ("mandible") is held in place via a relatively long metal spring, which is attached via screws to the mandible and palatine bone. The metal spring can be easily and quickly removed from the screw in the mandible without the screw having to be removed. Therefore, the mandible can be completely removed in a few seconds.



There are also large pieces of rubber fitted in the joint bowls (fossa mandibularis) of the jaw joints, which hold the joint head (caput mandibulae) "like in a rubber bowl".



The model's jaw joints are not very flexible. Natural movements in the jaw joint require that, among other things, the articular head can slide forward and downward until the articular head is forward on the tuberculum articulare. The latter is the bony part with a weak guiding groove in front of the depression (fossa mandibularis). This can only be demonstrated on the model if the rubber in the joint cups is removed, which the model is not designed for.



If you take a firm hold of the mandible, you can however move it up and down and to the sides, although the natural sliding joint mechanism as described above cannot be demonstrated at all.

Clinically speaking, the skull model can be used to understand diseases and disorders in the brain when a brain model is used. It can also be used as decoration.