Mandible, maxilla and masticatory muscles, shown in isolation, in 6 numbered illustrations. 1 illustration of mandible divided to show pterygoid muscles, lateral view. 1 illustration of maxilla and mandible divided in sagital section showing medial pterygoid muscles, medial view. 1 illustration of maxilla and mandible shown with medial pterygoid muscles, posterior view. 2 illustrations of mandible with zygoma and masseter muscles. Lateral views. All illustrations shown with full permanent dentition.