134 



THE ESSENTIALS OF HISTOLOGY 



municates with the cavity of the mouth by a small pore in the super- 

 ficial epithelium (gustatory pore, fig. 164, p). 





FIG. 163. VERTICAL SECTION OF PAPILLA FOLIATA OF THE RABBIT, PASSING 

 ACROSS THE FOLi.E. (Ranvier.) 



p, central lamina of the corium ; v, section across a vein, which traverses the whole length 

 of the folia ; p', lateral lamina in which the nerve-fibres run ; g, taste-bud ; n, sections 

 of nerve-bundles ; a, serous gland. 



:< '''''- ' ^'"v'lF/f 



i: liSlliJ^ 



^ ., 7 r W.T! r .X fK^f-.-tj J __r^c: _ -S&^ -_ii>r^ 



if 



^EV%i\Y /K 



teti 



FIG. 164. SECTION THROUGH THE MIDDLE OF A TASTE-BUD. (Ranvier.) 



p, gustatory pore ; ,s, gustatory cell ; r, sustentacular cell ; m. lymph-cell, containing fatty 

 granules ; e, superficial cells of the stratified epithelium ; n, nerve-fibres. 



The cells which compose the taste-bud are of two kinds, viz. : 

 1. The gustatory cells (fig. 165, a), which are delicate fusiform or 



