Oblique radiograph of dromedary skull. 1. Incisive bone; 2. upper canine teeth; 3. vomer bone; 4. ventral nasal meatus; 5. ventral part of ventral nasal concha; 6. dorsal part of ventral nasal concha; 7. dorsal nasal concha; 8. nasal bone; 9. maxillary sinus; 10. nasolacrimal duct; 11. lacrimal sinus; 12. diverticula of frontal sinus; 13. frontal bone; 14. coronoid of mandible; 15. external sagittal crest; 16. cranial cavity; 17. parietal bone; 18. facial crest; 19. oropharynx; 20. third upper premolar teeth; 21. second upper premolar teeth; 22. first upper premolar teeth; 23. first lower cheek teeth; 24. second lower cheek teeth; 25. third lower cheek teeth; 26. ramus of mandible; 27. lower canine teeth