Fig. i 9 . 



Orifice of the middle and posterior ethmoidal cells 

 Superior turbinated bone 



Ethmoid bone 



Hypophysis 



Septum of the sphenoidal 

 sinuses (opened) 

 Left sphenoidal sinus 



Dura mater - 

 Vomer 

 Basilar portion of occipital bone 



Pharyngeal tonsil 

 Pharyngeal recess 



(Rosenmulleri) 



< >rifice of the Eustachian tube 

 Torus tubarius 



Anterior arch of atlas. 

 Nasal portion of pharynx- 

 Odontoid process of axis 

 Plica salpingo- 



pharyngea 

 Velum palatinum- 



Body of the axis 



Septum of frontal sinuses 



(opened) 

 Left frontal sinus 



Nasal bone 



Transverse section of mucous 

 membrane 



Nasal cartilage 



Vestibulum nasi 



Hard palate 



M. orbicularis oris 



Orifice of the nasal duct 

 : Orifice of the anterior ethmoidal cells 

 tnfundibulum (region of the orifice of the maxillary sinus) 

 Bulla ethmoidalis 

 Inferior turbinated bone 

 Accessory orifice of maxillary sinus 



Lingual nerve Submaxillary duct 



Fiff. 20. 



Hypoglossal nerve 

 Palatoglossal arch 

 Faucial tonsil 



Ranine artery 



Sublingual salivary gland 

 Sublingual artery 



Soft palate 



Uvula 

 Palatopharyngeal arch 



Dorsum linguae 



- Hard palate 



M. orbicularis oris 



Sublingual caruncle 



Mandible 



M. Geniohyoglossus 



