Flap of frontal bone opens to show sinus. The temporal bone is chiseled on the right half to show sigmoid sinus, canalis facialis and semicircular canals. Maxillas opens to show maxillary sinus. Flap on mandible opens to expose roots of premolars and molars. Dissectible into ten parts.
All teeth removable.
A plastic human skull with the medial and lateral pterygoids, as well as the temporal and masseter muscles, created in elastic. A movable disc is also represented. The relationship of the temporal mandibular structures to occlusion becomes more meaningful both to the doctor and the patient when they can be seen in this manner.