726 THE ORGANS OF SENSE. 
spindles, and are mostly arranged like cask staves to form the outer envelope of 
the bud. Some are, however, found in the interior of the bud, amongst the gustatory 
4 
5 
6 
Fig. 533. 
A, Section through a papilla vallata of human tongue. B, Section through a part of the papilla foliata 
of a rabbit. 
1. Papilla. 2. Vallun. 3. Taste buds. 4. Papillie. 5. Taste buds. 6. Duct of serous gland. 
cells. The latter occupy the centre of the bud, and present a nucleated cell-body, 
which is prolonged into a peripheral and a central process. The peripheral process 
Gustatory hairs Supporting 
Gustatory cells 
pe ore 
Gustatory 
cells 
Gustatory 
hairs 
A 
B 
Fic. 534. 
A, Three-quarter surface view of taste bud from the B, Vertical section of taste bud from the papilla 
papilla foliata of a rabbit (highly magnified). foliata of a rabbit (highly magnified), 
is rod-like and almost hyaline, and terminates at the gustatory pore in a hair- 
like filament, the gustatory hair. The central process passes inwards towards the 
deep extremity of the bud, where it ends free, 
either in a single varicose filament or by 
becoming bifurcated or branched. 
Nerves of Taste.— The nerve which sup- 
plies the taste buds over the anterior part 
of the tongue is probably the chorda tym- 
pani branch of the facial nerve; that for 
the posterior part, the glosso- pharyngeal. 
The internal laryngeal branch of the vagus 
nerve supplies the epiglottis, together 
with a small area of the tongue immedi- 
ately in front of it. The nerve fibrils, 
pret feerite lone dis ectavacan dena aeeteah eee having lost their medullary sheath, ramify 
MG. 535.-—TsoLatkD CELLS rROM 'Taste Bubp : 
ov Rappir (Engelmann). partly between the gustatory cells and 
aisuppontine celle: A Guntatony calle partly amongst the cells of the bud capsule. 
b 
