CEANIAL GANGLIA OF AMBLYSTOMA 



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ganglionic mass there arises a slender nerve which sends a few 

 cutaneous fibers to the skin over the anterodorsal portion of the 

 eye. It then follows over the dorsal border of the nasal organ, in 

 the region of which it gives off cutaneous fibers. In the distribu- 

 tion of its fibers this nerve issuing from the anteriorly placed 

 ganglion simulates the ophthalmicus profundus V nerve. A 



Fig. 44 Frontal section, showing relative difference in size of the ophthalmic 

 ganglia on normal and operated sides. Part of the ophthalmic placode was pos- 

 sibly not removed. X 37. 



Fig. 45 a and b Lateral views of a reconstruction, showing, respectively, nor- 

 mal and operated sides in the region of V and VII. The posterior portion of VII 

 ganglion is not shown. The operated side (fig. 45b) shows a small ophthalmic 

 ganglion displaced anteriorly and lying above the optic nerve. It is connected 

 posteriorly with the V and VII complex by a long slender root a few fibers from 

 its dorsoposterior border. A small ophthalmicus profundus V nerve extends from 

 its anteroventral border. X 50. 



