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Tongue - Anatomy & Physiology (view source)
Revision as of 21:43, 27 December 2010
, 21:43, 27 December 2010→Types of Papillae
===Foliate===
===Foliate===
8 to 12 papillae in parallel folds, one either side of the tongue midline. Consists of a stratified squamous epithelium, present in the caudal 1/3 of the tongue. There are taste buds, glands and lymphatics present.
===Vallate===
===Vallate===
[[Image:Circumvallate Papillae.jpg|thumb|right|150px|Circumvallate Papillae (Goat) - Copyright RVC 2008]]
[[Image:Circumvallate Papillae.jpg|thumb|right|250px|Circumvallate Papillae (Goat) - Copyright RVC 2008]]
There are 3 to 6, often secondary papillae in taste buds. There are broad glands in the caudal 1/3 of tongue. Taste buds and lymphatics are present.
===Fungiform===
===Fungiform===
Red dots on tongue surface. Consists of keratinised, stratified squamous epithelium and blood vessels. Involved in loss of heat via panting in dogs. Present in the rostral 2/3 of the tongue, taste buds are present.
[[Image:Filoform Papillae Histology.jpg|thumb|right|150px|Filoform Papillae Histology (Cat) - Copyright RVC 2008]]
[[Image:Filoform Papillae Histology.jpg|thumb|right|250px|Filoform Papillae Histology (Cat) - Copyright RVC 2008]]
===Filiform===
===Filiform===
The most numerous. They point caudally. There are no taste buds, glands or lymphatics. They are the smallest and consist of a thick keratin on stratified squamous epithelium. They are very prominent in cat and are present in the rostral 2/3 of the tongue.
==[[Gustatory System - Anatomy & Physiology|Taste Buds]]==
==[[Gustatory System - Anatomy & Physiology|Taste Buds]]==