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| | *A secondary blood supply to the tongue is provided via the tonsillar branch of the facial artery and the ascending pharyngeal artery | | *A secondary blood supply to the tongue is provided via the tonsillar branch of the facial artery and the ascending pharyngeal artery |
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| − | ==Histology== | + | ==[[Tongue - Histology|Histology]]== |
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| − | [[Image:Tongue Histology Cat.jpg|thumb|right|150px|Tongue Histology (Cat) - Copyright RVC 2008]] | + | ==[[Tongue - Histology#Types of Papillae|Types of Papillae]] |
| − | *Stratified squamous epithelium
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| − | | |
| − | *[[Lingual Gland - Anatomy & Physiology|Lingual]] glands
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| − | | |
| − | *Mucosal covering tightly adheres to the contact surface
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| − | | |
| − | *Degree of keratinisation depends on diet
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| − | | |
| − | *Less keratinisation on ventral surface and sides of tongue
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| − | | |
| − | *Covered by papillae (taste buds)for protection and taste
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| − | | |
| − | *Papillae are specialised projections of the mucosa
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| − | | |
| − | *Some papillae have taste buds others are mechanical to roughen surface of tongue
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| − | | |
| − | ==Types of Papillae==
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| − | | |
| − | ===Conical===
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| − | *Not in horses
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| − | *Caudal 1/3 of tongue
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| − | *Point caudally
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| − | *No taste buds
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| − | *Thick epithelium
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| − | | |
| − | [[Image:Foliate_Papillae_Cat.jpg|thumb|right|150px|Foliate Papillae (Cat) - Copyright RVC 2008]]
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| − | ===Foliate===
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| − | *8 to 12 papillae in parallel folds, one either side of tongue midline
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| − | *Stratified squamous epithelium
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| − | *Caudal 1/3 of tongue
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| − | *Taste buds present
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| − | *Glands
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| − | *Lymphatics present
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| − | | |
| − | ===Vallate===
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| − | [[Image:Circumvallate Papillae.jpg|thumb|right|150px|Circumvallate Papillae (Goat) - Copyright RVC 2008]]
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| − | *3 to 6
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| − | *Often secondary papillae in taste buds
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| − | *Broad glands
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| − | *Caudal 1/3 of tongue
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| − | *Taste buds present
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| − | *Lymphatic tissue present
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| − | | |
| − | ===Fungiform===
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| − | *Red dots on tongue surface
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| − | *Keratinised, stratified squamous epithelium
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| − | *Blood vessels
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| − | *Loss of heat via panting in dogs
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| − | *Rostral 2/3 of tongue
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| − | *Taste buds present
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| − | | |
| − | [[Image:Filoform Papillae Histology.jpg|thumb|right|150px|Filoform Papillae Histology (Cat) - Copyright RVC 2008]]
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| − | ===Filiform===
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| − | *Most numerous
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| − | *Points caudally
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| − | *No taste buds
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| − | *No glands
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| − | *No lymphatics
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| − | *Smallest
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| − | *Thick keratin on stratified squamous epithelium
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| − | *Very prominent in cat
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| − | *Rostral 2/3 of tongue
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| | | | |
| | ==Taste Buds== | | ==Taste Buds== |