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 POLICE. (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. 



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



p, gustatory pore ; *, 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 



