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Large Animal Anatomy > Unit 2 Teeth > Flashcards

Unit 2 Teeth Flashcards

1
Q

labial surface

A

outer surface of incisors and canines

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2
Q

buccal surface

A

outer surface of cheek teeth

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3
Q

lingual surface

A

inner surface of the lower teeth

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4
Q

palatine surface

A

the inner surface of the upper teeth

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5
Q

mesial surface

A

surfaces that contact adjacent teeth

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6
Q

distal surface

A

surface directed away from the midline

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7
Q

occlusal (masticating) surface

A

surface facing the opposite arcade

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8
Q

equine deciduous formula

A

2 (I 3/3, C 0/0, P 3/3) =24

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9
Q

equine permanent formula

A

2 (I 3/3, C1/1, P 3(4)/3, M 3/3) = 40 (42)

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10
Q

Know modified triadan system

A

x

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11
Q

modified triadan system for deciduous teeth

A

500, 600, 700, 800

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12
Q

all canine teeth end in

A

4

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13
Q

all first molars end in

A

9

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14
Q

brachydont tooth consists of

A

crown, root, neck

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15
Q

crown encased in

A

enamel

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16
Q

root encased in

A

cementum

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17
Q

neck

A

junction between root and crown

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18
Q

dentin (primary dentin)

A

deep to enamel; provides the greater structure of the tooth;

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19
Q

secondary dentin

A

produced and laid down to protect pulp cavity

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20
Q

pulp cavity

A

vascularized conective tissue with nerves and lymphatic vessels

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21
Q

tooth is attached to alveolus by

A

periodontal ligament connecting cementum of the tooth to alveolar bone

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22
Q

hypsodont tooth has an extensive crown

A

coronal portion and reserve crown

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23
Q

coronal portion

A

exposed crown

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24
Q

reserve crown

A

unexpected crown

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25
Q

enamel

A

covers crown; invaginates into tooth to form infundibulum

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26
Q

cementum in hypsodont tooth

A

covers external surface of tooth and fills some of infundibulum

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27
Q

infundibulum of equine incisors

A

invagination of enamel extending from occlusal surface into body of the tooth; partially filled with cementum

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28
Q

cup

A

bowl-shaped central depression on occlusal surface of the incisors

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29
Q

enamel spot (mark or ring)

A

deepest part of infundibulum

30
Q

dental star is

A

secondary dentin fills pulp cavity as tooth matures

31
Q

where is the dental star located

A

on occlusal surface between labial edge of incisor and the cup

32
Q

what color is the dental star

A

yellow to brown color

33
Q

what is the appearance of the dental star

A

starts as dark line; changes to oval then to round

34
Q

equine canine teeth erupt at _____ age

A

3.5 to 5 years of age

35
Q

canine teeth are better developed in

A

male horses

36
Q

mares canine teeth

A

rudimentary and commonly do not erupt through the gingiva

37
Q

what are wolf teeth

A

maxillary first premolar

38
Q

wolf teeth are present in ____ of horses

A

80%

39
Q

when do wolf teeth erupt

A

in first year of life

40
Q

how large are wolf teeth

A

1-2 cm in length; only have a single root

41
Q

what are blind wolf teeth

A

not erupted through the gingivia

42
Q

equine cheek tooth pulp cavity

A

narrow

43
Q

infundibulum are only present in what cheek teeth

A

equine upper cheek teeth (no infundibulum in lower cheek teeth)

44
Q

equine upper cheek teeth have ______ infundibula

A

2 infundibula

45
Q

equine cheek teeth continue to grow until

A

first few years of age (5-7 yrs)

46
Q

crowns erupt at ____ mm each year until _____ age

A

2-3 mm; 18-20 years

47
Q

occlusion of cheek teeth

A

upper cheek teeth are more wider with complicated enamel folding; lower cheek teeth are narrower, no infundibula

48
Q

infundibula fill with _____ before eruption

A

cementum

49
Q

what are eruption bumps

A

transitory swellings on ventral border of mandible

50
Q

eruption bumps are seen in

A

horses 2-4 years old

51
Q

what occurs when horses have eruption bumps

A

remodeling of the mandible to allow for formation of mandibular cheek teeth

52
Q

what are “caps”

A

remnants of deciduous teeth

53
Q

anesthetize infraorbital nerve at _____ foramen

A

maxillary

54
Q

how to anesthetize infraorbital nerve

A

insert needle ventral to zygomatic arch, 3 cm caudal to lateral canthus of the eye; desensitizes all upper teeth

55
Q

anesthetize infraorbital nerve within the _____

A

infraorbital canal

56
Q

how to anesthetize the infraorbital nerve

A

insert needle into infraorbital foramen; advance into infraorbital canal ~1 inch; desensitizes the teeth as far caudally as the first molar

57
Q

anesthetize the alveolar nerve at the _____

A

mandibular foramen

58
Q

how to anesthetize the alveolar nerve

A

insert needle on medial aspect of mandible just rostral to angle of jaw to anesthetize nerve prior to entering mandibular foramen; desensitizes all mandibular teeth

59
Q

anesthetize inferior alveolar nerve within the ____

A

mandibular canal

60
Q

how to anesthetize inferior alveolar nerve

A

push depressor labii inferioris muscle dorsally; insert needle into mental foramen; advance needle into the mandibular canal; desensitizes teeth as far caudally as the third premolar

61
Q

lower arcade of ruminant teeth

A

3 incisors and 1 canine tooth

62
Q

does the ruminant have an upper and lower first premolar

A

no

63
Q

ruminant deciduous formula

A

2 (I 0/3, C 0/1, P 3/3) = 20

64
Q

Ruminant permanent formula

A

2 (I 0/3, C 0/1, P 3/3, M 3/3)=32

65
Q

What are fighting teeth

A

upper third incisors
upper canines
lower canines

66
Q

what animals have fighting teeth

A

llama

67
Q

what are the muscles of mastication

A

masseter
temporalis
digastricus (occipitomandibularis part in the horse)
pterygoid

68
Q

muscles of mastication are innervated by

A

mandibular division of CN V; except caudal belly of digastricus wich is innervated by CN VII

69
Q

what are the salivary glands

A

parotid
mandibular
sublingual
buccal (several)

70
Q

lymph from upper part of head drains to

A

medial retropharyngeal lymph nodes

71
Q

mandibular lymph nodes of horse drain to

A

cranial deep cervical lymph nodes

72
Q

what is the collecting center for the entire head

A

lateral retropharyngeal lymph nodes; efferents form the tracheal trunk

Large Animal Anatomy (14 decks)

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