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VMS 1004 > The Teeth > Flashcards

The Teeth Flashcards

1
Q

What is a heterodont

A

possesses more than one tooth form

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2
Q

What is a Diphyodont

A

Has more than one set of teeth

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3
Q

Diastema

A

A gap between the teeth

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4
Q

Crown

A

The neck and root of the tooth (covered in enamel)

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5
Q

cementoenamel

A

slightly visible border anatomical border identified on a tooth

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6
Q

What are teeth anchored in their socket by?

A

Alveoli

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7
Q

Lamina dura

A

thin shell of dense bone lining the alveoli

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8
Q

Pulp cavity

A

central space of the tooth containing pulp soft tissue with nerves, vessels and lymphatics

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9
Q

What connective tissue attaches root to bone via periodontal ligaments

A

periodontium

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10
Q

What four defined structures are part of periodontal tissues?

A

gingiva cementum, alveolar bone and periodontal ligament

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11
Q

Gingiva

A

Gums or gingiva is the name for the oral mucosa that covers the tooth

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12
Q

Free Gingiva

A

The edge of the gum, connected to the tooth

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13
Q

Attached Gingiva

A

The part that attaches the gum to the bone

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14
Q

How do the gingiva attach?

A

via a basement membrane from the epithelium in the gum to the tooth enamel

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15
Q

Brachydont

A

smaller and low crowned teeth suitable for feeding on soft diet

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16
Q

Hypsodont

A

Larger crown that can resist that can resist wear and tear of feeding on tough and fibrous diet, e.g in ungulates

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17
Q

Radicular

A

Forms a root

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18
Q

Aradicular

A

Does not form a root

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19
Q

gingival crevice

A

the ridge in your mouth where the teeth meet the gums

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20
Q

Enamel

A

Hardest substance in the body, Acellular- cannot regenerate, in brachydont (covers only the crown), Hypsodont (covers the entire body of the tooth)

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21
Q

Dentin

A

Forms the bulk of the tooth, hard substance similar to bone

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22
Q

Cementum

A

least hard of all, thin bonelike layer

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23
Q

Infundibulum

A

The funnel-like centre of the tooth

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24
Q

Incisors

A

adapted for grasping, pinching scratching and nipping

25
Q

Canines

A

“weapons” for tearing flesh during hunting and fighting

26
Q

Premolars

A

rostral cheek teeth which have deciduous precursors

27
Q

Molars

A

flattened and triangular with jagged edges, serrated edge blades

28
Q

vestibular

A

surface of tooth facing the mouth

29
Q

Mandible

A

lower jaw

30
Q

Maxillary

A

upper jaw

31
Q

Lingual

A

side of tooth facing into the mouth

32
Q

Palatal

A

lingual surface of the Maxillary teeth

33
Q

Coronal

A

a way to describe the occlusal surface (occlusal is when the teeth touch each other)

34
Q

Mesial

A

surface of the incisor teeth that are towards the middle or median plane of the mouth
Rostral surface of the canine, pre molar and molar

35
Q

Distal

A

surface of the incisor teeth that are away from the middle or median plane of the mouth- Caudal surfaces of the canine, pre molar and molar

36
Q

What teeth are pigs born with?

A

‘needle teeth’ which are deciduous, their canines continuously erupt and the lower are larger

37
Q

What teeth do dogs have

A

Their canines are the longest, they also have carnassial teeth which are used for ‘shearing’

38
Q

How many roots do dog incisors have?

A

one root

39
Q

Which dog teeth only have one root?

A

PM1’s and lower M3

40
Q

The dental pad

A

a feature of ruminant dental anatomy that helps them gather large quantities of grass and plant matter

41
Q

Features of ruminant teeth

A

Incisors and canines are brachydont, canines are assimilated to incisors- pre molars and molars are hypsodont with a large diastema

42
Q

Where is the dental pad?

A

In the position of the upper teeth, interacts with the lower incisors

43
Q

What are incisors in horse teeth like?

A

High crowns with a single root, curved in younger horses

44
Q

What are canines in horse teeth like?

A

In mares they are often small and may not erupt, deciduous canines are often absent

45
Q

What are hypsodonts in horse teeth like?

A

continuous wear, they slowly erupt with a delayed development of roots and a complicated folding of enamel

46
Q

What are teeth like in the maxillary cheek of horses?

A

Teeth have less pronounced infoldings but two enamel rings called infundibulum

47
Q

Wolf teeth in horses

A

small teeth, often lacking

48
Q

Pre molars in horses

A

they form a continuous surface

49
Q

Infundibulum

A

a cup or funnel shaped invagination of enamel from the occlusal surface of equine incisors, looks like a dark mark

50
Q

What happens to the infundibulum over time?

A

as the tooth wears over time the appearance changes, the cup gets smaller on incisors over time

51
Q

Why do rabbits belong to the group lagomorpha

A

Because they have two small second incisors or peg teeth behind the maxillary incisors

52
Q

What is the enamel of the tooth like in rabbits?

A

not evenly distributed, its thicker on the facial aspect and thinner on the lingual aspect

53
Q

What are the incisors and cheek teeth like in lagomorphs?

A

aradicular hypsodonts so they have long anatomic crowns and remain open-rooted

54
Q

Pulp

A

Soft tissue inside the tooth, contains nerves, blood vessels and connective tissue

55
Q

What teeth do rabbits not have?

A

Canines

56
Q

What artery supplies the lower teeth?

A

inferioralveolar

57
Q

Which nerve innervates the maxillary and mandibular divisons?

A

Trigeminal nerve

58
Q

What innervates the upper incisor teeth?

A

infraorbital nerve

59
Q

What supplies blood to the

A

inferialoveolar nerve which runs in the mandibular canal

VMS 1004 (30 decks)

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