90 



THE SKULL AND THE BONES OF THE SKULL 



Anterior internal orbital canal 1 Foramen ethmoidale anterius 



Cribriform plate Lamina cribrosa 

 Middle turbinate bone Concha nasalis media 

 Superior turbinate bone Concha nasalis superior 

 Superior meatus of the nose Meatus nasi superior 

 Spheno-ethmoidal recess Recessus spheno-ethmoidalis 



Sphenoidal foramen \ v \ 



Apertura sinus sphen< 



Sphenoidal sinus Sinus sphenoidalis 



Sphenopalatine foramen 



Foramen sphenopalitinura 



Basipharyngeal canal 2 



Canalis basipharyngeus ' 



Vaginal process of sphenoid 



Processus vaginalis 



Pterygopalatine canal 

 Canalis pharyngeus 



Nasopharyngeal meatus 

 Meatus nasopharygeus 



Accessory palatine canals 



Foramina palatina minora (Canales palatini) 



Posterior nasal spine 

 Spina nasalis posterior 

 Orifice of the posterior palatine canal 

 Foramen palatinum majus 



1 U.S. : Anterior ethmoidal canal. 



Frontal sinus 

 Sinus frontalis 



Nasofrontal suture 



Sutura nasofrontalis 



Nasal spine 



.. Spina frontalis 



Agger nasi, or ethmoidal crest 

 ,-'' Agger nasi 



Nasal bone 

 ,- Os nasale 



Middle meatus of the nose 

 "Meatus nasi medius 



Atrium of the middle meatus 



" Atrium meatus medii 



Pyriform or anterior nasal aperture 

 Apertura piriformis 



Inferior turbinate bone of the nose 



Concha nasalis inferior 



Anterior nasal spine 



Spina nasalis anterior 



Inferior meatus of the nose 



Meatus nasi inferior 



Transverse or posterior suture of the palate 



Sutura palatina transversa 



'- See note to p. 48. 



FIG. 203. THE EXTERNAL WALL OF THE NASAL CAVITY WITH THE TURBINATE BONES AND 

 THE NASAL MEATUS : MEDIAN SAGITTAL SECTION. LEFT SIDE. 



Line of detachment of the middle turbinate bone of the nose 



Superior turbinate bone Concha nasalis superior 

 Spheno-ethmoidal recess Recessus spheno-ethmoidalis 



Sphenopalatine foramen 



Foramen sphenopalatinum 



Basipharyngeal canal 1 \ 

 Canalis basipharynjus ) 



Vaginal process of sphenoid 

 Processus vaginalis 



Pterygopalatine canal 



Canalis pharyngeus 



Sphenoidal process 



Processus sphenoidalis 



Orbital process 



Processus orbitalis 



Vertical plate of the palate bone 

 Pars perpendicularis ossis palatini 



Orifice of the maxillary sinus, or antrum of Highmore 



Apertura sinus maxillaris 



Horizontal plate of the palate bone 

 Pars horizontalis ossis palatini 



Orifice of the ethmoidal cells 



Frontal sinus 



Sinus frontalis 



Sulcus olfactorius 



Sulcus olfactorius 



Agger nasi, or ethmoidal crest 



Agger nasi 



Orifice of the frontal sinus 

 Apertura sinus frontalis 

 Hiatus semilunaris 



L - Hiatus semilunaris infundib. li 



Ethmoidal bulla 

 ~~ Bulla ethmoidalis 



Lachrymal bone Os lacrimale 

 Uncinate process 

 Processus uncinatus 

 Lachrymoturbinal suture 

 Sutura lacrimoconchalis 

 Lachrymal process of the inferior tur- 

 binate bone 

 Processus lacrimalis conchas inferioris 



Inferior turbinate bone 

 Concha nasalis inferior 



Inferior meatus of the nose 



Meatus nasi inferior 



Palatine process of superior maxillary bone 



Processus palatinus maxillae 



Ethmoidal process of the inferior turbinate bone 



Processus ethmoidalis conchae inferioris 



1 See note to p. 48. 



FIG. 204. THE EXTERNAL WALL OF THE NASAL CAVITY: MEDIAN SAGITTAL SECTION. LEFT SIDE. 



The middle turbinate bone of the nose has been cut away. 



Cavum nasi Nasal cavity. 



