156 
1. External occipital crest. 
~ 
. Superior curved line of 
the occipital bone. 
. Foramen magnum. 
. Occipital condyle. 
. Digastric groove. 
. Mastoid process. 
. External auditory meatus. 
. Styloid process. 
. Glenoid fossa. 
10. 
ile 
12. 
13. 
Foramen spinosum. 
Sphenoidal spine. 
Foramen ovale. 
External pterygoid plate. 
14. 
ley 
16. 
17. 
18. 
19° 
20. 
21. 
22. Malar process of superior maxilla. 
. Spheno-maxillary fissure. 
. Zygomatic fossa, 
5. Zygomatic arch. 
. Posterior opening of left nasal fossa. 
OSTEOLOGY. 
} : I) | 
mW 
1 29 
Fic. 116.—Norma Basatis, 
Hamular process of internal 
pterygoid plate. 
Nasal septum. 
Posterior nasal spine. 
Horizontal plate of palate bone. 
Palatal process of superior maxilla. 
Anterior palatine canal. 
Intermaxillary suture. 
Posterior palatine canal. 
. Pterygoid fossa. 
. Scaphoid fossa. 
9, Foramen lacerum medium. 
. Opening of osseous Eustachian 
canal, 
. Carotid canal. 
. Jugular fossa. 
. Stylo-mastoid foramen. 
4. Jugular process of occipital bone. 
35. 
36, 
37. 
38. 
39. 
Groove for occipital artery. 
Mastoid foramen. 
Posterior condylic foramen. 
Inferior curved line of occipital bone. 
External occipital protuberance. 
The sphenoid comprises that part of the calvaria which forms the roof and sides of 
the apertures which lie on either side of the nasal septum above the hard palate 
xX 
