INFLUENCE ON THE HUMAN SYSTEM. 105 



Lastly, the lingual nerve, arising by several 

 "filaments from the side of the corpus pyramidale 

 of the medulla ahlongata, escapes from the skull 

 through the anterior condyloid foramen, with 

 communicating branches, amongst others, to 

 the pneumogastric, sympathetic, and gustatory 

 nerve.* 



I now proceed to the demonstration. The first 

 symptom is the irritation of the gustatory nerve, 

 whilst the glosso -pharyngeal excites the mem- 

 brane of the tongue and the mucous glands of the 

 mouth and tonsils to copious discharges of mucus ; 

 hence the spitting of the novice. 



But the gustatory nerve is a branch of the 

 lingual, by which it transmits the shock to the 

 brain ; hence the giddiness which supervenes as 

 the second stage of the process. 



Then the pneumogastric takes up the excite- 

 ment and begins to render the stomach uncom- 

 fortable — at first with simple nausea, and at last 

 with violent vomiting. 



Finally, the superior cardiac nerve becomes 



* In putting together this anatomical synopsis I have had 

 "before me INIr. Erasmus Wilson's ' Practical and Surgical 

 Anatomy.' 



