THE SKULL AND THE BONES OF THE SKULL 



83 



Sphenopalatlne notch 



Incisura sphenopalatii a 1 



Sphenoidal process 



Processus sphenoidalis \ 



Ethmoidai, or superior 

 turbinate, crest 



Crista cthmoiddlis 



Vertical plate (internal 



or nasal snr.ace) 

 Pars perpendicularis 



(facies nasalis) 

 Inferior turb nate crest 



Crista conciialis 



Pyramidal process, or 

 tuberoslty 



Processus pyramidalis 



Posterior accessory 

 palatine canal 



Foramen palatinum minus 



Spheric-palatine notch 

 Incisura sphenopalatina 



Orbital process 



/ Processus orbitalis 



Orbital process 



Processus orbitalis 



Sphenopalatine notch 

 Mira sphenopalatina 



Maxillary process 



Processus nasalis 



, Pyramidal process, 

 or tuberosity - 



Processus pyramidalis 



Horizontal or pal Ate platr ; 



Pars horizontalis 

 Horizontal or palate (late 

 Pars horizontalis 



Sphenoidal process 



Piocessus sphenoidalis 



Vertical plate 

 Pars perpendicularis 



Sphenoidal process 



Processus sphenoidalis 



Horizontal or 

 palate plate 



Pars horizontalis 



Vertical plate 



(external surface) 



Pars perpendicularis 



(facies maxillaris) 



Posterior palatine or 



palatomaxillary groove 



Sulcus pterygopalatinus 



-Pyramidal pro- 

 cess, or tuberosity 

 Processus pyramidalis 



V, 



FIG. 180. INNER SURFACE. FIG. 181. SEEN FROM BEHIND. FIG. 182. OUTER SURFACE. 

 Os PALATINUM. THE PALATE-BONE (OF THE LEFT SIDE). 



Sphenopalatine notch 



Incisura sphenopalatina I 



Sphenoidal process^ 



Processus sphenoidalis * 



Vertical plate (internal or nasal 

 surface) 



Pars perpendicularis (facies nasalis) 



Pyramidal process, or tuberosity 



Processus pyramidalis 



Horizontal plate (inferior 

 surface) 



Pars horizontalis (lacies palatina) 



Orbital process. 



Processus orbitalis N^ 



Vertical plate 



Pars perpendicularis 



Sphenoidal process 

 Processus sphenoidalis 

 Horizontal or 

 palate plate 

 ' Para horizontalis 



Pyramidal process, or tuberosity 



Processus pyramidalis 



j Vertical plate (external surface) 



* : ., Pars perpendicularis (facies 

 maxillaris) 



Posterior palatine or 



palatomaxillary groove 



Sulcus pterygopalatinus 



Pyramidal process, or 

 tuberosity 



I Processus pyramidalis 



FIG. 183. INNER SURFACE. FIG. 184. SEEN FROM BEHIND. FIG. 185. OUTER SURFACE. 

 THE LEFT PALATE-BONE OF A BOY BORN AT FULL TERM. 



Frontal process 



Processus frontosphenoidalis 



Orbital orifice of the temporal 

 canal 



Foramen zygomatico-orbitale 



Orbital process (orbital 



surface) 



Lamina orbitalis (facies 

 orbitalis) 



Orbital orifice of the 

 malar canal 



Foramen zygomatico- 

 orbitale 



Orbital border 



Margo infra-orbilalis 



Malar orifice of th? malar canal 

 Foramen zygomaticofaciale 



Body-length, 21 inches. 



Marginal process (var.) 



Processus marginalis (var.) 



Temporal orifice of the temporal canal 



Foramen zygomaticotemporale 

 Body of the malar bone (malar 



surface) 

 Lamina malaris (facies malaris) 



Body of the malar bone 



(temporal surface) 



Lamina malaris (facies 



temporal is) 



' Temporal process/ 



Processus temporalis 



Frontal process 



Processus frontosphenoidalis 



Orbital process 

 (temporal surface) 



Lamina orbitalis 

 (facies temporalis) 



V. 



Accessory temporal 

 orifice of the malar canal 



Foramen zygomaticotemporale 



FIG. 186, SEEN FROM BEFORE. FIG. 187. SEEN FROM BEHIND. 



Os ZYGOMATICUM MALAR BONE (OF THE LEFT SIDE). 



Supplementary Bones of the Upper Jaw. 



ii- 



