Page 204 - Veterinary Histology of Domestic Mammals and Birds, 5th Edition

186 Veterinary Histology of Domestic Mammals and Birds

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Stratified squamous epithelium

Taste buds

Lamina propria mucosae of vallate papilla
Taste buds
Tubulo-acinar, serous glands (Ebner’s glands)

10.8 Vallate papilla (goat). These prominent papillae contain intra-epithelial taste buds and are underlaid by
serous glands (Ebner’s glands). Haematoxylin and eosin stain (x32).

10.9 Lingual papillae (schematic).

function to those associated with vallate papillae, are pre- of vallate papillae. In carnivores, only diffuse aggregates
sent beneath the furrows. of lymphoid tissue and individual lymphoid nodules are
The root of the tongue contains lymphoid tissue that observed.
contributes to cellular immune responses within the oral
cavity. In horses and cattle, this tissue occurs in organised Innervation and blood supply of the tongue
form as tonsils (tonsillae lingualis). Isolated lingual tonsils The hypoglossal nerve (XII) supplies motor innervation
are also found in pigs. The lingual tonsils of small rumi- to the tongue. Mechanical, thermal and special sensory
nants consist mainly of lymphoid tissue within the core stimuli (touch, pain, temperature and taste) are conveyed

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