1: Taxonomy, Anatomy, Physiology Flashcards Preview

Yale Residency - Rabbits, Guinea Pigs, Misc. Rodents > 1: Taxonomy, Anatomy, Physiology > Flashcards

Flashcards in 1: Taxonomy, Anatomy, Physiology Deck (43)
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1
Q

Class and order of rabbits

A

Class Mammalia, Order Lagomorpha

2
Q

How are lagomorphs different from rodents?

A

of incisors (6 vs 4), and lighter skull structure

3
Q

Hares belong to which genus?

A

Lepus

4
Q

Confusing names of rabbits/hares

A

Jackrabbits are hares. Belgian hares are rabbits.

5
Q

Differences between rabbits and hares

A

Rabbit young are altricial. Hare young are precocial. Longer palate in rabbits. Hares are larger and have longer ears.

6
Q

The only lagomorph to be domesticated

A

Oryctolagus cuniculus

7
Q

Ears make up what % of total body surface area?

A

12

8
Q

What are peg teeth?

A

Secondary incisors

9
Q

Diastema is flanked by which teeth?

A

Incisors and premolars, space is formed by the absence of canines

10
Q

Name the # and pairs of salivary glands

A

4 pairs - parotid, submaxillary, sublingual, zygomatic

11
Q

Which salivary gland is useful for research?

A

Parotid (very large)

12
Q

What prevents vomiting?

A

Well-developed cardiac sphincter

13
Q

Striated muscle of esophagus extends to where?

A

Cardia

14
Q

Stomach makes up what % of GI volume?

A

15%

15
Q

Terminal ileum empties into which structure?

A

Sacculus rotundus

16
Q

What does the sacculus rotundus contain?

A

Lymphoid aggregates

17
Q

Cecum makes up what % of the GI?

A

40%

18
Q

Vermiform appendix

A

Blind, narrow tube at end of cecum - has many lymphoid aggregates

19
Q

Pacemaker of the colon

A

Fusus coli - regulates passage of ingesta into the colon

20
Q

Cecotrophs are rich in which nutrients?

A

Vitamins, minerals, nitrogen

21
Q

Rabbits secrete what form of bile?

A

More biliverdin than bilirubin

22
Q

How does the rabbit kidney compare to other mammalian species?

A

More primitive

23
Q

Which minerals are excreted by the rabbit kidney?

A

Calcium and magnesium

24
Q

Rabbits are what kinds of ovulators?

A

Reflex ovulators

25
Q

Temperature range for rabbits

A

61-80 deg F

26
Q

Which mutation is thought to contribute to hydrocephalus?

A

hy/hy

27
Q

Which mutation causes paralytic tremors?

A

pt

28
Q

Describe CNS hypomyelination

A

Hypomyelination of white matter

29
Q

Inheritance of buphthalmia

A

bu/bu - autosomal recessive with incomplete penetrance.

30
Q

cat-1/cat-1 mutation causes what?

A

Cataracts - bilateral lens opacity

31
Q

cat-2/cat-2 mutation causes what?

A

Cataract - unilateral lens opacity

32
Q

Which mutation causes mandibular prognathism?

A

mp/mp - autosomal recessive with incomplete penetrance

33
Q

What is the most common inherited disease of rabbits?

A

Mandibular prognathism

34
Q

Osteopetrosis

A

Small rudimentary incisors

Increased bone density

35
Q

Heritance of osteopetrosis

A

os/os, autosomal recessive

36
Q

Which enzyme breaks down atropine?

A

Atropine esterase

37
Q

Mutation for Pelger Huet Anomaly

A

Pg/pg, Pg/Pg (autosomal partial dominant)

Disease with Pg/Pg only

38
Q

Mutation for hereditary lymphosarcoma

A

ls/ls (autosomal recessive)

39
Q

Pregnancy toxemia incidence is highest in which breeds?

A

Dutch, Polish, English breeds

40
Q

Tx for pregnancy toxemia

A

LRS, cal gluc, 5% dextrose, steroids

41
Q

Predisposing factors for ulcerative pododermatitis

A

Size, poor sanitation, wire bottom, thin fur pads

42
Q

Uroliths are frequently caused by which minerals?

A

Ammonium magnesium phosphate, calcium carbonate

43
Q

Which injectable anesthetics cause cardiomyopathy in rabbits?

A

Ketamine/xylazine