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Oral Cavity

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Most common portal of entry into the alimentary canal?
ingestion
absence of the lower jaw due to failure of development of the 1st brachial arch
agnathia
what species is agnathia most commonly seen in?
lambs
failure of fusion of the lateral palatine processes
palatoschisis
example of drug that can cause palatoschisis when given to a pregnant queen or mare
griseofulvin
failure of fusion of the upper lip along the philtrum
cheiloschisis
what is the common name for cheiloschisis?
hare lip
inflammation of the oral and mucous membranes
stomatitis
inflammation of the gingiva
gingivitis
in vesicular stomatitides, vesicles form between what two layers?
epithelium, lamina propria
most common location of vesicles in feline calicivirus?
tongue
virus that causes foot and mouth disease?
picornavirus
virus that causes vesicular stomatitis?
rhabdovirus
virus that causes vesicular exanthema of swine?
calicivirus
virus that causes swine vesicular disease?
picornavirus
vesicular stomatitides start as intracellular edema which leads to ballooning degeneration in what cell layer?
stratum spinosum
of the four vesicular stomatitides discussed, which one is not reportable in the US?
vesicular stomatitis
FMD has low or high mortality in adults?
low
FMD has low or high mortality rates in the young?
high
cause of high mortality rates of FMD in young animals?
myocarditis
common name given to the heart of young animals suffering from FMD?
tiger heart
lesions of FMD can be seen post-mortem in what location of the alimentary canal?
rumen pillars
FMD lesions tend to be more severe in which species?
swine
lesions of vesicular stomatitis limited to what three locations?
mouth, teats, feet
san miguel sea lion virus is most closely related with which vesicular stomatitides?
vesicular exanthema
non-infectious vesicular disease characterized by acantholysis
pemphigus vulgaris
non-infectious vesicular disease characterized by the absence of acantholysis
bullous pemphigoid
condition caused by high blood/salivary urea, which gets transformed by oral bacteria into ammonia causing caustic injuries
uremic stomatitis
main cause of papular/proliferative stomatitides?
parapoxvirus
bovine papular stomatitis is characterized by what type of degeneration in the stratum spinosum?
ballooning
bovine papular stomatitis causes what kind of inclusion bodies?
eosinophilic intracytoplasmic
zoonotic disease in humans caused by bovine papular stomatitis?
milker's nodules
most common location of contagious ecthyma in goats/sheep?
commissures
calf diphtheria is caused by what bacterium?
fusobacterium necrophorum
what is another name for calf diphtheria?
oral necrobacillosis
focal granuloma or ulcer in oral cavity of cats and sometimes dogs
oral eosinophilic granuloma
chronic, idiopathic condition of cats characterized by inflamed gingiva, inappetence, and fetid breath (usually associated with FeLV & FIV)
lymphoplasmacytic stomatitis
the most common oral masses of dogs are fibromatous epilus of the periodontal ligament and _______________________
gingival hypertrophy/hyperplasia
gingival hyperplasia most common in what type of dogs?
brachycephalic breeds
most common malignant neoplasm of the oral cavity of dogs
oral melanoma
what percentage of oral melanomas in dogs are malignant?
90%
most common type of oral neoplasia of cats
squamous cell carcinoma
3 location of squamous cell carcinomas in the oral cavity of the cat
tongue, tonsil, gingiva
in what species are oral fibrosarcomas most likely to be found?
feline
does canine oral papillomatosis occur more frequently in older dogs or younger dogs?
younger
canine oral papillomatosis causes cells in which cell layer to enlarge and undergo ballooning degeneration?
stratum spinosum
canine oral papillomatosis cause what kind of inclusion bodies?
intranuclear
lengthening of the mandible
prognathia
shortness of the maxilla
brachygnathia superior
shortness of the mandible
brachygnathia inferior
distemper infection in dogs during odontogenesis can lead to interference of the ameloblasts, decreasing enamel production causing what disorder?
segmental enamel hypoplasia
excess of what substances is of specific importance to destruction of ameloblasts and odontoblasts?
fluoride
incorporation of pigmented chemical agents during teeth mineralization
enamel discoloration
major cause of enamel discoloration in younger animals
tetracycline
incorporation of porphyrins into dentin
congenital porphyria
odontoclastic resorption of the tooth neck followed by red granulation tissue overlying the gingival margins in cats
feline external resorptive neck lesions
non-mineralized composite mass of bacteria, food particles, and other tissue cells adhered to the tooth surface
plaque
a mineralized plaque
calculus
regression of the gum line with inflammation of the gingival sulcus and alveolus, with resorption of the alveolar bone and periodontal ligament
periodontal disease
common, benign tumor typically of the periodontal ligament-type stroma
fibromatous epulis of the periodontal ligament
aggressive infiltrative tumor in dogs of the odontogenic epithelium that commonly recurs as a squamous cell carcinoma
canine acanthomatous ameloblastoma
cystic dilation of a salivary duct
ranula
pseudocyst (not lined by epithelium) filled with saliva
salivary mucocele
inflammation of salivary gland leading to sloughed cells forming a "nest" for mineralization
sialoliths
larger than normal tongue
macroglossia
abnormal pointed tongue in dogs which doesn't allow them to suckle, leading to death
bird tongue
bacteria that causes wooden tongue
actinobacillus lignieresii
infection of intact epithelium of the tongue and esophagus by candida albicans
thrush
what fungus causes thrush in the oral cavity?
candida albicans
diagnostic sign of thrush
grey-green pseudomembrane