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39 Cards in this Set
- Front
- Back
Do rats have foot pads? How many digits on the front paw and back paw?
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Yes and 5 digits up front, 4 in back
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Do rats have foot pads? How many digits on the front paw and back paw?
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Yes and 5 digits up front, 4 in back
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age these rates.
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Left - old
Right - young Old rat tails have thicker skin |
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What's a DIY rat restraint device?
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Baggie!
Don't leave them in too long, or they'll overheat, and be sure to have the corner cut off for breathing. |
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Are rat teeth hypsodont or brachydont?
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The incisors are hypsodont, molars are brachydont.
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Rats have an extra gland in the head - can you find it and name it?
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Exorbital lacrimal gland
You can also see the: Parotid salivary gland Mandibular salivary gland |
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What is this large neck gland in the rat?
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Mandibular salivary gland - in the guinea pigs, this is where the thymus gland would be in young guinea pigs.
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What do the tweezers have in this rat abdomen?
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The spleen. It's between the stomach and pancreas.
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Name these rat holes!
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Anus
Vagina Urethra |
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about how many mammary glands do rats have?
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about ten
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How do rats heat regulate?
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The tail (the major one), the ears, and scrotum.
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What is attaching to either end of these rat testes?
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Cranially - fat pad
Caudally - tail of the epididymus |
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In this mature male rat specimen, what are the accessory sex glands?
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The big fat horns are vesicular glands with darkened areas of coagulating glands near where they meet at the prostate glands.
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what is R? What is this glands purpose in the rat
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It is the preputial gland. It is a scent gland.
H is vesicular gland, I is coagulating gland, K and L are prostate, M is bulbourethral gland, R is preputial gland, E is testicle. |
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What are 13, 14, and 15?
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13 - exorbital lacrimal gland
14 - parotid salivary gland 15 - mandibular salivary gland |
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What's the greenish portion of this rat stomach?
The flesh colored portion? |
Greenish is the non-glandular part.
Flesh-colored is the glandular. |
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Based on this digestive tract would you say herbivore, carnivore, or omnivore? Where's the cecum?
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Rats are omnivores. The cecum is at the bottom right.
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What are these on the rat?
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Mammary glands
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What are 12 and 15?
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12 - bulbourethral gland
15 - prepucial gland |
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Where are the best places to get blood from mice?
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Lateral saphenous vein
Tail veins - lateral veins and caudal median a. Since mice use tails for thermoregulation, heating the mice dilates those tail veins. |
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What are the cricetidae rodents?
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Hamsters, gerbils, wild white-footed mice.
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Are hamsters pack animals?
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No, they are lone rangers.
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What's the site to draw blood from on hamsters?
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The lateral saphenous vein.
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Sex these hamsters!
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Male on left, female on right.
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What are hamster scent glands?
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Sebaceous scent glands on their flank and back.
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What's the purpose for extra hamster skin?
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Escape - they can have enough room to turn and attack.
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Are hamster teeth hypsodont or brachydont?
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incisors - hypsodont
molars - brachydont |
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What's poking out from the back, between the liver and stomach of this hamster?
What is on top of the cecum? |
The fundic portion of the stomach
The ansa spiralis of the ascending colon (?) |
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Which part of the hamster stomach is the glandular and which part is nonglandular?
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The big round part is glandular, the pokey uppy fundic part is the nonglandular
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What sex gland is being held up by the scissors? Which one is right caudal to that?
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The vesicular gland is above the scissors, the coagulating gland is caudal to it.
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What is male sex gland is being indicated from the right? From the left?
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From the right - the penis.
From the left - the bulbourethral gland |
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What are the scent areas of gerbils?
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The ventral midline scent areas.
Like in hamsters, the female gerbil is larger than the male. |
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What's the gerbil site to draw blood?
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Lateral saphenous vein.
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What special orbital gland do gerbils have? Why would you remove them?
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Deep gland of the third eyelid (Harderian gland).
Removed to treat "red nose". |
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Are gerbils herd animals?
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Yes ma'am - the more the merrier.
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what is the gestation period of the guinea pig and chinchilla?
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Guinea pig - 63 days; chinchilla - 110 days
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What is nidiculous?
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A term referring to animals born needing a nest. Similar to, but slightly different than altricial - which is a developmental stage - or being born blind and hairless.
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What vessels can you do a blood draw from a rat?
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Lateral tail veins, median caudal artery of the tail and the lateral saphenous vein.
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Is the gerbil an omnivore, carnivore or herbivore?
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Omnivore. This is why its cecum is less pronounced than rabbit or guinea pig cecums.
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