SG for Final Exam 2023 ANS 332 Companion Animal Science 100% Accurate
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Course
ANS 332
Institution
ANS 332
SG for Final Exam 2023 ANS 332 Companion Animal Science 100% Accurate
Polydactyl is an autosomal ________?
autosomal dominant trait
How does polydactyl present itself in cats vs dogs and give an example of a breed commonly presenting this
Cats: preaxial polydactyl (more on medial side?); key ...
sg for final exam 2023 ans 332 companion animal science 100 accurate polydactyl is an autosomal autosomal dominant trait how does polydactyl present itself in cats vs dogs and give an exam
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SG for Final Exam 2023 ANS 332 Companion Animal
Science 100% Accurate
Polydactyl is an autosomal ________?
autosomal dominant trait
How does polydactyl present itself in cats vs dogs and give an example of a breed
commonly presenting this
Cats: preaxial polydactyl (more on medial side?); key west
Dogs: extra dew claws; Great Pyrenees
Elbow Dysplasia is a ________ condition:
polygenetic
OCD is:
osteochondrosis of the elbow joint; OCD= abnormal cartilage development
Potentially affected sites of the joint for elbow dysplasia/ocd:
medial humeral condyle,
fragmented medial coronoid process,
ununited anconeal process,
incongruent elbow
One or both limbs can be affected
Environmental factors that contribute to elbow dysplasia?
Diet, fast growth
Begins in young dogs
What does elbow dysplasia typically require?
Surgical correction
What breeds are commonly affected by elbow dysplasia?
Labs, goldens, rotties, bassets, german shepherds
Hip Dysplasia is a ________ condition:
polygenetic
Hip dysplasia is:
subluxation of the hip joint; loose joint in a young dog leads to osteoarthritis in an older
dog
One or both limbs can be affected
Environmental factors that also contribute to hip dysplasia:
diet, fast growth, excess weight
Is hip dysplasia easy to eliminate?
No, it is difficult to eliminate due to unidentified genetic marker;
surgical correction of subluxation to avoid arthritis must be done when they're young
what kinds of breeds are commonly associated with hip dysplasia?
Large and giant breeds
Intervertebral disc disease is found in what kinds of breeds?
Chondrodystrophic breeds such as dachshund, basset hounds, corgi
Long backed breeds
What is the mode of inheritance for intervertebral disc disease?
not been identified
, What is intervertebral disc disease?
Abnormality of the annular cartilage around the intervertebral disc; the abnormal
cartilage allows protrusion of the inner nucleus pulposus into the spinal column
Intervertebral disc disease causes pressure on the spinal column resulting in:
Pain
Ataxia
Paralysis
Brachycephalic Syndrome has occured due to:
phenotypic selection for certain breeds
Breed examples exhibiting brachycephalic syndrome:
English bulldog, Boston terrier, French bulldog, Pug
Brachycephalic syndrome results in:
elongated soft palate,
everted laryngeal saccules,
stenotic nares,
hypoplastic trachea
(only three can be corrected surgically)
The result of brachycephalic syndrome increase airway resistance which leads to:
increased airway noise, exercise intolerance, increased cardiovascular workload,
collapse, death
Mitral valve dysplasia is _______:
an inherited defect of the mitral valve; exact mode of inheritance is unknown
Mitral valve dysplasia results in:
backflow of blood from the left ventricle into the left atrium eventually leading to heart
failure
How is mitral valve dysplasia diagnosed?
auscultation, radiographs, and cardiac ultrasound
What breed is predisposed to mitral valve dysplasia?
Cavalier King Charles Spaniels
Dilated cardiomyopathy is ______:
Inherited cardiac abnormality of certain large breed dogs; exact mode unknown but sex-
linked gene suspected bc increased incidence in males
Age of onset of dilated cardiomyopathy:
middle age to older
Dilated cardiomyopathy results in:
Initially no obvious symptoms as the heart muscle dilates, but eventually results in heart
failure bc arrhythmias can occur and lead to sudden collapse or death
What is recommended to screen dilated cardiomyopathy:
screening echocardiograms and Holter monitoring in pre-disposed breeds is
recommended and asymptomatic dogs should not be bred
What breeds are predisposed to dilated cardiomyopathy?
Doberman pinschers
boxers
great danes
irish wolfhound
saint bernard
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