THE SKULL AND THE BONES OF THE SKULL 



93 



Incisor foramen or foramen of Stenson 



Foramen incisivum 



Canal of the nasal duct 



Canalis nasolacriraalis 



Inferior turbinate bone 



Concha nasalis inferior 



Inferior wall of the orbit 

 Paries inferior orbita; 



Infra-orbital groove 



Sulcus infra-orbitalis 



Sphenomaxillary 



fissure 



Fissura orbitalis 

 inferior 



Posterior narea- 

 Choana; 



Foramen rotundum 



Foramen rotundum 



Foramen ovale 

 Foramen ovale 



Foramen spinosum 



Foramen spinosum 



Spinous process of the sphenoid bone. 

 Spina ;mgularis 



Canaliculus innominatus (var.) (transmitting 

 th . small superficial petrosal nerve) 



Lingula of the sphenoid bone 

 Lingula sphenoidalis 



Anterior nasai spine 

 Spina nasaiis anterior 



Anterior nasal aperture, or apertura pyrifonnis 

 Apertura piriformis 



Bony septum of the nose 

 Septum nasi osseum 



Lateral crest of the 

 . septum (var.) 

 Crista lateralis septi 

 (var.) 



Maxillary sinus, or 

 antrum of High- 

 more 



Sinus maxillaris 



Sphenoidal foramen 

 Apertura sinus sphenoidalis 



Septum of the sphenoidal 

 sinuses 



Septum sinuum sphenoid- 

 alium 



Sphenoidal sinuses 



Sinus sphenoidales 



1 See note to p. 92. 



\ 'Sphenoidal canal iculi 1 



"Canaliculi sphenoidales 

 Vidian canal 

 Canalis pterygoideus (Vidii) 



FIG. 208. BY MEANS OF A NEARLY HORIZONTAL SECTION IN A PLANE A LITTLE ABOVE THAT 

 OF THE INFERIOR WALLS OF THE ORBITS, THE LOWER PORTIONS OF THE NASAL FOSS.E 

 AND OF THE ORBITS HAVE BEEN EXPOSED. SEEN FROM ABOVE. 



Posteriorly the section passes through the sphenoidal sinuses, in this specimen exceptionally capacious. 

 The upper orifices of the *sphenoidal canaliculus (see note to p. 92) are indicated by bristles. 



Cavum nasi et orbita Nasal cavity and orbits. 



