20 



LABORATORY OUTLINE OF NEUROLOGY 



Olfactory bulb 



Superficial 



ophthalmic ner/e 

 Deep opVthalmic 

 nenre 



laxillaru nen/e 

 iibunr nerVe 



JBelWeen brain 



ITidbrain 

 rode 



Acoustico- 

 lateral area 



ner/e 



Skin area 

 rth toitrlcle 



lyorjiandibular 

 nerv/e 



FIG. 2. Diagram of brain and cranial nerves of the dogfish, Squalus acan- 

 thias, from above. Natural size. Olfactory part of the brain is marked with 

 coarse dots, the visual apparatus with crosses, the acousticolateral nerves and 

 centers with broken oblique lines, the visceral sensory nerves with horizontal 

 lines, the general cutaneous nerves with vertical lines, and the visceral motor 

 nerves with black and white rectangles. 



