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Large Animal Anatomy > Unit 2 Teeth > Flashcards

Unit 2 Teeth Flashcards

(72 cards)

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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
enamel
covers crown; invaginates into tooth to form infundibulum
26
cementum in hypsodont tooth
covers external surface of tooth and fills some of infundibulum
27
infundibulum of equine incisors
invagination of enamel extending from occlusal surface into body of the tooth; partially filled with cementum
28
cup
bowl-shaped central depression on occlusal surface of the incisors
29
enamel spot (mark or ring)
deepest part of infundibulum
30
dental star is
secondary dentin fills pulp cavity as tooth matures
31
where is the dental star located
on occlusal surface between labial edge of incisor and the cup
32
what color is the dental star
yellow to brown color
33
what is the appearance of the dental star
starts as dark line; changes to oval then to round
34
equine canine teeth erupt at _____ age
3.5 to 5 years of age
35
canine teeth are better developed in
male horses
36
mares canine teeth
rudimentary and commonly do not erupt through the gingiva
37
what are wolf teeth
maxillary first premolar
38
wolf teeth are present in ____ of horses
80%
39
when do wolf teeth erupt
in first year of life
40
how large are wolf teeth
1-2 cm in length; only have a single root
41
what are blind wolf teeth
not erupted through the gingivia
42
equine cheek tooth pulp cavity
narrow
43
infundibulum are only present in what cheek teeth
equine upper cheek teeth (no infundibulum in lower cheek teeth)
44
equine upper cheek teeth have ______ infundibula
2 infundibula
45
equine cheek teeth continue to grow until
first few years of age (5-7 yrs)
46
crowns erupt at ____ mm each year until _____ age
2-3 mm; 18-20 years
47
occlusion of cheek teeth
upper cheek teeth are more wider with complicated enamel folding; lower cheek teeth are narrower, no infundibula
48
infundibula fill with _____ before eruption
cementum
49
what are eruption bumps
transitory swellings on ventral border of mandible
50
eruption bumps are seen in
horses 2-4 years old
51
what occurs when horses have eruption bumps
remodeling of the mandible to allow for formation of mandibular cheek teeth
52
what are "caps"
remnants of deciduous teeth
53
anesthetize infraorbital nerve at _____ foramen
maxillary
54
how to anesthetize infraorbital nerve
insert needle ventral to zygomatic arch, 3 cm caudal to lateral canthus of the eye; desensitizes all upper teeth
55
anesthetize infraorbital nerve within the _____
infraorbital canal
56
how to anesthetize the infraorbital nerve
insert needle into infraorbital foramen; advance into infraorbital canal ~1 inch; desensitizes the teeth as far caudally as the first molar
57
anesthetize the alveolar nerve at the _____
mandibular foramen
58
how to anesthetize the alveolar nerve
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
anesthetize inferior alveolar nerve within the ____
mandibular canal
60
how to anesthetize inferior alveolar nerve
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
lower arcade of ruminant teeth
3 incisors and 1 canine tooth
62
does the ruminant have an upper and lower first premolar
no
63
ruminant deciduous formula
2 (I 0/3, C 0/1, P 3/3) = 20
64
Ruminant permanent formula
2 (I 0/3, C 0/1, P 3/3, M 3/3)=32
65
What are fighting teeth
upper third incisors upper canines lower canines
66
what animals have fighting teeth
llama
67
what are the muscles of mastication
masseter temporalis digastricus (occipitomandibularis part in the horse) pterygoid
68
muscles of mastication are innervated by
mandibular division of CN V; except caudal belly of digastricus wich is innervated by CN VII
69
what are the salivary glands
parotid mandibular sublingual buccal (several)
70
lymph from upper part of head drains to
medial retropharyngeal lymph nodes
71
mandibular lymph nodes of horse drain to
cranial deep cervical lymph nodes
72
what is the collecting center for the entire head
lateral retropharyngeal lymph nodes; efferents form the tracheal trunk

Large Animal Anatomy (14 decks)

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