Читать книгу Feline Dentistry - Jan Bellows - Страница 31

The skull can be divided into the fused bones of the calvaria, the upper jaw (maxillae), and lower jaw (mandibles). The dorsal aspect of the skull (cranium) is composed of the paired frontal and parietal bones. The occipital region of the cranium is the caudal aspect of the skull formed by the occipital bone. The temporal region is composed of the lateral walls of the cranium formed by the temporal bones. The rostral wall of the cranium is formed by the ethmoid bone (Figure 1.12a,b).

Figure 1.11 (a) Alveolus encasing a fractured maxillary canine tooth. (b) Decreased alveolar margin height (arrows) secondary to periodontal disease.

Figure 1.12 (a) Left lateral aspect of the skull with the zygomatic arch removed; 1. Parietal bone; 2. Squamous temporal bone; 3. Sphenopalatine foramen; 4. Maxilla; 5. Incisive bone; 6. Frontal bone; 7. Lacrimal bone; 8. Optic canal. (b) Medial aspect of a sagittal section of the left aspect of the skull: 1. Incisive bone; 2. Maxilloturbinates; 3. Nasal bone; 4. Nasal septum; 5. Palatine bone; 6. Pterygoid bone; 7. Ethmoid bone. (c) Dorsal aspect of the skull: 1. Incisive bone; 2. Nasal bone; 3. Maxilla; 4. Frontal bone; 5. Zygomatic process of frontal bone; 6. Zygomatic bone; 7. Parietal bone; 8. Zygomatic process of temporal bone; 9. Lacrimal foramen; 10. Infraorbital foramen. (d) Ventral aspect of the skull: 1. Incisive bone; 2. Palatine process of the maxilla; 3. Major palatine foramen; 4. Vomer bone; 5. Pterygoid bone; 6. Frontal bone; 7. Palatine bone; 8. Temporal process of the zygomatic bone; 9. Zygomatic process of the temporal bone; 10. Retroarticular process; 11. Mandibular fossa of the articular surface of the temporomandibular joint.

Source: Images reprinted with permission of Morton Publishing Company.