Optic lobes 



1 i optic lobes 



Hum 



Periotic capsule 



Semicircular canal 

 —•Mesial muscular mass 

 —Ventricle IV 



Dilated central canal of upper 



part of spinal cord 



Lateral muscles 



Neural arch cartilages 



section pas 



Pineal divertic. 



Optic lobes 

 Cavity of optic lobes 



Iter 



Ventricle IV 



Mesial muscular mas* 



Medulla 



Periotic cartilage 



Semicircular canal 



Lateral muscles 



Notochords 

 Mesial muscular 



; cord (composite) 











I F. G. 



PL 



