NERVES OF TASTE. 



549 



scales are replaced by short, thread-like elements, so that the 

 whole reminds one somewhat of the construction of the head of 

 an artichoke. 



FIG. 212. 



Drawing of upper surface of the tongue, showing the position of the 

 circumvallate papillae (1). (Sappey.) 



Nerves can be seen entering these bodies, and are in all proba- 

 bility directly connected with the modified epithelial cells of which 



