60 



THE SKULL AND THE BONES OF THE SKULL 



Parietal angle 



Angulusparietalis 



Temporal surface of the great wing 1 

 Facies temporalis alse magnae 



Malar border 



Margo zygomaticus 



External or squamous border 



Margo squamosus 



Infratemporal crest 

 Crista infratemporalis 



Anterior clinoid process 

 Processus clinoideus anterior 



Pituitary fossa 2 



Fossa hypophyseos 



Dorsum sellae 

 .Dorsum sellae 



Olivary eminence 

 Tuberculum sellae 

 Middle clinoid process var.) 

 Processus clinoideus medius 

 Sella turcica 2 

 Seiia turcica 



-._ . .... Spinous process 

 Spina angularis 



Pterygospinous process (var.) 



Processus pterygospinosus (Civinini) (var.) 



External pterygoid plate 



Lamina lateralis processus pterygoidei 



V, 



Hamular process 

 Hamulus pterygoideus 



-*^B? 



1 See note to p. 59. 



* English anatomist- use the terms pituitary fossa and sella turcica as synonyms ; Toldt, more accurately, distinguishes between them, 

 meaning by pituitary fossa (Fossa hypophyseos) the deep pit on the upper surface of the body of the sphenoid bone which lodges the 

 pituitary body or hypophysis cerebri, and by sella turcica the saddle-shaped surface which forms the floor of that fossa. TR. 



FIG. 120. THE SPHENOID BONE SEEN FROM THE LEFT SIDE (TEMPOROZYGOMATIC SURFACE). 1 



Small wing 



Ala parva 

 Sphenoidal septum 

 Septum sinuum sphenoidalium 



Sphenoidal foramen 

 Apertura sinus sphenoidalis " 



Sphenoidal rostrum 

 Rostrum sphenoidale 



Sphenoidal sinus 

 Sinus sphenoidalis 



Optic foramen Foramen opticum 

 Anterior clinoid process 

 Processus clinoideus anterior 

 ^Pituitary fossa 

 Fossa hypophyseos 

 Dorsum sellae 

 Dorsum sellae 



Body of the sphenoid bone 



Corpus ossis sphenoidalis 

 Occipitosphenoidal fissure 



""Fissura spheno-occipitalis 



Sphenoidal septum 



Septum sinuum sphenoidalium 



Basilar portion or process of the occipital bone i ~"\'| Vi 

 Pars basilaris ossis occipitalis 



FIG. 121. THE SPHENOIDAL SINUSES IN MEDIAN SAGITTAL SECTION, THE GREATER PART OF THE 

 SPHENOIDAL SEPTUM HAVING BEEN REMOVED. SEEN FROM THE LEFT SIDE. 



Sphenoidal sinuses Sinus sphenoidales ^ 



Cancellous portion of the body of the sphenoid bone 

 Substantia spongiosa corporis ossis sphenoidalis 



Sphenoidal septum 



Septum sinuum sphenoidalium. _ 



. Dorsum sellse 

 Dorsum sellae 



Small wing 



y'Ala parva 



'Spinous process 



Spina angularis 



X 



Foramen rotundum 



Foramen rotundum 



Vidian or pterygoid caiial 

 Canalis pterygoideus (Vidii) 



Sphenoidal 

 foramina 



Aperturre sinuum 

 sphenoidalium 



N Orbital surface of the great wing 

 Facies orbitalis alae magnae 



JPterygoid process 



Processus pterygoideus 



FIG. 122. THE SPHENOIDAL SINUSES, EXPOSED FROM ABOVE BY THE REMOVAL OF THE INNER 



LAMELLA OF COMPACT BONE. 

 The right sinus is opened from above ; the left is unopened. 



Os sphenoidale The sphenoid bone. 



