NERVE SUPPLY TO PITUITARY GLAND 



339 



Fig. 1 S(>iiii-(li:igrammatic representation of one side of the cavernous sym- 

 pathetic system of a canine, showing the nerves passing to the posterior lobe 

 along its artery. Other branches to the dura and a cluster (No) to the N. oculo- 

 motorius. The hypophyseal region is viewed from below with dura intact. 



NERVES OF THE PARAHYPOPHYSIS 



This little 'nubbin' resting in a small depression in the floor 

 of the sella, usually enclosed in dura, is present in over 80 per 

 cent of canines, and is evidently a remnant of the embryonic 

 Rathke's pouch. In some adults it may be traced to the pars 



