FIG. 39. THE EXTERNAL BASE OF THE SKULL. 



Ant. Palatine Fossa 18. 



Post. Nasal Spine 19. 



Post. Border of Vomer 20. 



Facial Surf, of Sup. Maxilla 21. 



Hamular Process of Int. Pterygoid 22. 



Plate of Sphenoid 23. 



Pterygoid Fossa 24. 



Ext. Pterygoid Plate 25. 



Zvgomatic Process of Malar 26. 



Zygoma of Temporal 27. 



Pharyngeal Tubercle (pointer 28. 



crosses Foram. Lacerum Med.) 29. 



Eustachian Groove 30. 



Groove for Chorda Tympani ji. 



Nerve 



Petrous Portion of Temporal (Ori- 32. 



gin of Levator Palati) 33. 



Carotid Foramen 34. 



Ext. Auditory Meatus 35. 



Ext. Auditory Process 36. 

 Basion 



Bas 



Mastoid Process 



Jugular Foramen 



Ant. Condvlar Foramen 



Digastric Groove 



Occipital Groove 



Post. Condvlar Foramen 



Sup Curved Line of Occipital 



Inf. Curved Line 



Ext. Occipital Crest 



Ext. Occipital Protuberance 



Opisthion 



Foramen Magnum 



Right Occipital Condyle 



Foram. Lacerum Medium 



at + 



Vaginal Proc. of Tymp. Plate 

 Mastoid Foramen 

 Stylo- Mastoid Foramen 

 Styloid Process 

 Tympanic Plate (Tost, part of 



Glenoid Fossa) 



37. Spii'ous Proc. of Sphenoid 



38. Ant. part of Glenoid Fossa 

 *39 V Foramen Spinosum 



46". ^Foramen Ovale 

 \fj.' Foramen Vesalii 



42. Preglenoid Tubercle 



43. Eminentia Articularis 



44. Zygomatic Fossa 



45. Iniratemporal Crest 



46. Temporal Division of Great 



Wing of Sphenoid 



47. Spheno-Maxillary Fissure 



48. '1 uberosity of Sup. Maxilla 



49. Ext. Access. Palat. Foramen 



50. Post. Access. Palat. Foramen 



51. Post. Palatine Foramen 



$2'. Right Post. Naris (pointer crosses 

 ridge for Tensor Palati) 



53. Groove for Descend. Palat. Artery 



54. Horiz. Plate of Palate Bone 



55. Palat. Proc. of Sup. Maxiiia 



