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Anatomy 2 > Lecture 27 & 28: Rabbits v. Rodent (Exam 3) > Flashcards

Lecture 27 & 28: Rabbits v. Rodent (Exam 3) Flashcards

1
Q

What is a lagomorph

A

Rabbits & Picas

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2
Q

Describe the skin & hair of rabbits

A
  • Very delicate & can tear or rip when clipping
  • Lack foot pads
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3
Q

What do the females rabbits posses

A

Dewlap

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4
Q

T/F: Rabbits look foot pads

A

True

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5
Q

What is pododermatitis

A
  • Infection @ the points of the hock & tips of the third phalanges
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6
Q

What are the glandrous areas

A
  • Nose
  • Tip
  • Scrotal sacs
  • Inguinal folds
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7
Q

Slide 5

A
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8
Q

Where are the scent glands in rabbits

A
  • Chin
  • Perineal
  • Inguinal
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9
Q

What percent of the eyeglobe is the cornea in a rabbit

A

30%

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10
Q

Describe the eyes in rabbit

A
  • Lateral position of the eye globe in the skull
  • Wide field of view by O.U.
  • They have binocular vision
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11
Q

What does OU stand for

A

Ocular universal

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12
Q

Slide 7

A
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13
Q

What skull does the rabbit skull look a lot like

A

Equine skull

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14
Q

What is the main diff btw/ rabbits

A
  • Rabbits have a total of 6 incisors (2 on upper right, 2 on upper left, 1 on the lower right, & one on the lower left)
  • Rodents have 1 incisor in each quadrant
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15
Q

What type of fermenters are rabbits

A

Hind gut fermenters

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16
Q

Slide 9

A
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17
Q

T/F: Rabbits are not prone to colic like how horses are

A

False they are

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18
Q

Slide 10

A
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19
Q

Where is the cecum found

A

Superficially located in the caudal peritoneal cavity

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20
Q

Slide 11

A
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21
Q

Slide 13

A
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22
Q

Slide 15

A
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23
Q

Where is the descending doudenum at

A

The right side

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24
Q

Slide 16

A
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25
Q

What is Cecotroph

A
  • Night feces
  • They eat their night feces to absorb different nutrients than what is found in pellets they produce in the am
  • Allows them to get AAs, lipids, etc. that is needed for survival
  • Is a normal behavior
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26
Q

define coprophagy

A

feces ingestions

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27
Q

Slide 17

A
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28
Q

Slide 19

A
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29
Q

Describe the rabbit female repro system

A
  • Have two cervixes
  • Main blood supply is the vaginal a & ovarian a.
  • Very delicate duplex uterus
30
Q

Slide 21

31
Q

Slide 22

32
Q

What are the differences in rabbit female repro than small carnivores

A
  • 2 cervices
  • Abundant adipose in the broad ligament
  • Numerous large vessels in the broad lig
  • Lacking a thick suspensory lig
33
Q

Slide 23

34
Q

Slide 25

35
Q

Describe the male repro system

A
  • Have a fat bad in the inguinal region ( if damaged or torn can cause herniation of the inguinal canal)
  • Very elongated testis found lateral to the penis
  • Route of the sperm is the same found in canine & equine
36
Q

Slide 26

37
Q

Slide 28

38
Q

What are the differences in rat/chinchilla skulls compared to rabbit skulss

A
  • Incisors
  • Cheek teeth
  • Chinchillas have a huge tympanic bulla & external pinna
  • Have hyposdont teeth like seen in rabbits & equine; are prone to patho on their teeth too
  • Single incisor in ea quadrant
  • Rostral surface of the teeth has thicker enamel than the enamel on the lateral/caudal surface (also causes weird shape b/c of uneven wear)
39
Q

Slide 31

40
Q

Slide 32

41
Q

Who has elodont & hypsodont teeth

A
  • Chinchillas
  • Guinea pig
42
Q

Define elodont

A

Incisor teeth that are continuously growing through the life of the mammal

43
Q

Define hypsodont

A

High crowns to teeth; irregular occlusal surfaces, enamel crests & dentinal grooves, cheek teeth, & both premolars & molars

44
Q

Slide 35

45
Q

Which teeth are elodont in rabbits & rodents

A

The incisors

46
Q

What is harder enamel or dentin? Why is this important

A

Enamel b/c it is thicker & does not wear down as fast as dentin does

47
Q

What teeth are found in gerbils, hamsters, mice, & rats

A
  • Anelodont
  • Elodont
  • Brachyodont
48
Q

What are anelodont teeth

A
  • Pre molars & molars
  • Are rooted but they do not grow throughout life
49
Q

What are brachyodont teeth

A
  • Low crowns seen on the teeth
  • Premolars & molars
  • Enamel over entire occlusal surfaces
50
Q

Slide 36

51
Q

Slide 35

52
Q

Why do rodents have a white enamel on their incisors while rabbits have a orange/yellow tinge to them

A

B/c the enamel on the rats incisors is much thinner than the enamel found on rabbits incisors

53
Q

Describe the digestive system of rodents:

A
  • Simple
  • Not fermenters
  • Single chamber stomach
  • Really short ileum compared to the jejunum
  • Have a omnivorous type of digestive system
54
Q

Slide 38

55
Q

Slide 39

56
Q

Slide 40

57
Q

What type of uterus do rodents uterus

58
Q

What is something that Norway (lab) rats dont have

A

A gall bladder

59
Q

Describe the female repro tract of rodent

A
  • Single cervix
  • Elongated uterine horns
60
Q

Slide 42

61
Q

Slide 43

62
Q

Describe the rodent male repro tract

A
  • Testes are very large
63
Q

Slide 44

64
Q

Slide 45

65
Q

Slide 46

66
Q

How many mammary glands do rats have

A
  • 6 pairs of mammary glands
  • 12 glands total
67
Q

Slide 47

68
Q

What needs to occur in guinea pigs for parturition

A
  • Needs to occur young in life
  • Pubic symphysis ligaments open prior to delivery of large feti
  • If sow has litter before fusion of the pubic symphysis then cartilage union forms & persists for life
  • Cartilage union expands to allow passage of larger feti
  • Need to have their first litter by 9 months
69
Q

Slide 50

70
Q

Describe dystocias in guinea pigs & chinchilla

A
  • Precocious & large feti
  • If sow doesn’t have a litter prior to fusion of pubic symphysis by 6 to 9 moths dystocia will be common
  • If they don’t have at least one litter before 9 months the pelvic symphysis will ossify making parturition difficult

Anatomy 2 (44 decks)

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