Laboratory Animals and Exotics
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| What does the word rodent mean? | "to gnaw"
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| Mus musculus is the taxonomic name for what kind of mouse? | laboratory
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| The taxonomic name for the common rat is what? | Rattus norvegicus
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| Define fecundity. | reproductive potential
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| Why is the rat used for human dental research? | their molars resemble humans
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| What are three characteristics of a rat's tail? | it has scales, it is hairless, and it is longer than their body length
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| What two body organs do rats and mice use to dissipate heat? | tail and ears
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| How many digits are on the front limbs of rats and mice? | four
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| How many digits are on the hind limbs of rats and mice? | five
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| Why do rats continously grow? | because their epiphyses of their bones do not close
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| Where are harderian glands located? | orbit of the eye
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| What is the medical term for "red tears" | chromodacryorrhea
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| What type of teeth do mice and rats have? | hypsodontic-continously growing
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| Where is the brown fat located on rats and mice? | around the neck and between the scapulas
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| What is the purpose of brown fat? | it gives 10 times the energy storage than other types of fat
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| What anatomical feature makes rats and mice unable to vomit? | the limiting ridge
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| Where is the pancreas located? | throughout the mesentery
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| What organ of digestion do rats not have? | gall bladder
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| Describe the male penis. | it is an os penis
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| How long is the gestation period for rats? | 22 days
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| Rats and mice are born altricial. What does that mean? | hairless, blind, and deaf at birth
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| What time during a 24 hour period do rats and mice usually breed? | night
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| Define Whitten effect. | when groups of females live together without a male they will enter anestrus but if exposed to a male or smell a male they will all be in estrus in 3 days
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| What is the Bruce effect? | when a pregnant female mouse is exposed to a new male mouse or his odor within four days of being bred she will abort the pregnancy and return to estrus
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| When are mice and rats usually active? | night time they are nocturnal
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| What is a group of rats called? | mischief
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| What causes ringtail in rats? | low humidity
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| Why would you place a rodent onto a platform that raises them upward when taking a radiograph of them? | because they are so small it would magnify the image where you could see structures better
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| What radiographic views are most commonly done on rodents? | VD, DV, lateral
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| When collecting blood on a rodent and the method used is retroorbital, what must be done first?? | anesthesia
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| The commonly used anesthestic on rodents is what? | isoflurane
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| Which rodent that we have studied has a hairy tail? | gerbils
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| Which rodent should not be picked up by the tail? | gerbil
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| What kind of teeth do rodents have? | hypsodontic
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| Which gland do mice and rats not have? | sweat
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| Out of all of the diseases that we have covered concerning rodents, which one is common to all? | tyzzer's
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| Which of the rodents that we have studied has the longest gestational period? | guinea pig
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| Which rodent is monogamous? | gerbils
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| Which rodent is a wonderful pet for children? | gerbils
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| Why does the rat make a poor model for heart research? | their heart resembles a fish heart instead of a mammals
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| Why is endotracheal intubation in guinea pigs difficult? | because of the palatal ostium and thick tongue
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| Which rodent has teeth that resemble humans teeth? | rats
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| What is a group of rats called? | mischief
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| Where is the venous access on the rat that is commonly used? | lateral tail vein
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| What kind of a gland is the Harderian gland? | lacrimal
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| Where is the Harerian gland located? | orbit of the eye
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| Define chromodacyorrhea. | secretion of porphyrin
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| Ringtail is caused by what? | low humidity
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| The diet of guinea pigs needs to be supplemented with which vitamin? | C
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| What is the gram-negative disease found in all laboratory animals that forms spores and is caused by Bacillus piliformis bacteria? | Tyzzer's disease
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| What does a female hamster sometimes hide in her cheek pouches? | her babies
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| Which rodent will stomp their hind legs when in stressful situations or in fear? | gerbil
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| Which rodent that we have studied hibernates? | hamster
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| Proliferative ilietis is also called what? | wet tail in hamsters
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| Guinea pigs can get what is called "slobbers" and it is caused by what? | malocclusion
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| Vitamin C deficiency in guinea pigs causes what disease? | Scurvy
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