DEVELOPMENT OF THE PALATE 



149 



Nasal septum 



Tongue 

 Lateral palatine process 



Nasal septum 

 Lateral palatine process 



Mandible 



FIG. 151. Sections through the jaws of pig embryos, to show the development of the palate. 



X 8. A, 22 mm.; B, 34 mm. 



Median palatine 



process i 

 Lateral palatine 

 process 

 Internal choaiue 



Oral cavity 



Median palatine 

 process 



Raphe of lateral 

 palatine process 



Nasal passage 

 Anlate of uvula 



A B 



FIG. 152. Dissections to show the development of the hard palate in pig embryos. X 5 

 A, The upper jaw and palatine processes of a 22 mm. embryo in ventral view; B, Fusion of 

 palatine processes in a 35 mm. embryo. 



