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MODULE 3 - Gastrointestinal System > ANATOMY - Carnivore Dentition > Flashcards

ANATOMY - Carnivore Dentition Flashcards

- Carnivore (canine, feline) tooth anatomy - Carnivore (canine, feline) dental formulae

1
Q

What is the occlusal surface of the tooth?

A

The surface where the top and bottom teeth come together

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2
Q

What is the crown of the tooth?

A

The crown of the tooth is the whole region of the tooth that is covered in enamel

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3
Q

What is the difference between the clinical crown and the anatomical crown?

A

Clinical crown: the area of the crown above the gum line
Anatomical crown: the area of the crown below the gum line

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4
Q

(T/F) Enamel can regenerate itself

A

FALSE. Enamel is acellular and thus cannot regenerate

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5
Q

What is the main component of enamel?

A

Hydroxyapatite crystals

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6
Q

What is the layer of material that lies immediately
underneath the enamel of the tooth?

A

Dentine

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7
Q

Which cells produce dentine and where are they located within the tooth?

A

Dentine is produced by odontoblasts which line the pulp cavity

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8
Q

What are the four components of the pulp cavity?

A

Vascular connective tissue
Lymphoid tissue
Nerve supply
Odontoblasts

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9
Q

Why is the nerve supply to the pulp cavity described as ‘simple’?

A

The nerves that supply the pulp cavity interpret any mechanical, thermal or chemical stimuli as pain and thus are described as a ‘simple’ nerve supply

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10
Q

Where does both the nerve and blood supply exit the pulp cavity?

A

Both the blood and nerve supply exit the pulp cavity at the apical foramen

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11
Q

Why does the pulp cavity shrink throughout life?

A

The odontoblasts lining the pulp cavity continually produce dentine throughout life, leading to the shrinking of the pulp cavity

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12
Q

What is the purpose of the cement that surrounds the root of the tooth?

A

Cement is resistant to pressure erosion and thus protects the tooth from the pressure exerted by teeth and jaw bones

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13
Q

What is the name of the bony lining of the alveolus?

A

The lamina dura

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14
Q

Which structure attaches the cement surrounding the root of the tooth to the lamina dura lining the alveolus?

A

Periodontal ligament

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15
Q

What is the collective name for the structures which surround and support the tooth?

A

Periodontal structures

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16
Q

What are the three periodontal structures?

A

Gingiva
Periodontal ligament
Alveoli

17
Q

What are alveoli?

A

Alveoli are tooth sockets

18
Q

What is the point of attachment between the teeth and the gingivae?

A

Gingival sulcus

19
Q

What is the function of the gingival sulcus?

A

The gingival sulcus has a puddle of protective saliva where the teeth and gingiva meet that protects against dental and periodontal disease

20
Q

What can an increase in the depth of the gingival sulcus indicate?

A

An increase in the depth of the gingival sulcus can indicate periodontal disease

21
Q

What is the normal depth of the gingival sulcus in dogs and cats?

A

Dogs: less than 3mm deep
Cats: less than 0.5mm deep

22
Q

What is the name of the collagen fibres which make up the periodontal ligament?

A

Sharpey’s fibres

23
Q

What is the consequence of dental and/or periodontal disease of the periodontal ligament?

A

Dental/periodontal disease breaks down the periodontal ligament which loosens the tooth from the alveolus

24
Q

What does Technodont stand for?

A

Technodonty species have individual alveoli for the root of each tooth

25
Q

What does Diphydont stand for?

A

Diphydont species have a set of deciduous teeth

26
Q

What does Heterodont stand for?

A

Heterodont species have more than one tooth morphology

27
Q

What does Secodont stand for?

A

Secodont species have teeth with only sharp cutting edges

28
Q

Give an example of a species that is a secodont?

A

Feline species are secodonts

29
Q

Describe the process of permanent teeth eruption

A

The permanent tooth rises into the alveolus of the deciduous tooth, causing pressure erosion of the deciduous tooth leading it to eventually fall out. The permanent tooth will grow into the vacated alveolus and form a root

30
Q

What are the carnassial teeth?

A

Carnassial teeth are shearing teeth (upper PM4 and lower M1)

31
Q

What is the dental formula for most complete mammalian teeth arrangement?

A

3-1-4-3 / 3-1-4-3

32
Q

What is the canine permanent dental formula?

A

3-1-4-2 / 3-1-4-3

33
Q

What is the canine deciduous dental formula?

A

3-1-3 / 3-1-3

34
Q

What is the feline permanent dental formula?

A

3-1-3-1 / 3-1-2-1

35
Q

What is the feline deciduous dental formula?

A

3-1-3 / 3-1-2

36
Q

What is the arterial supply for the maxillary teeth?

A

Branch of the maxillary artery

37
Q

What is the arterial supply for the mandibular teeth?

A

Inferior alveolar artery

38
Q

Which nerve innervates the maxillary teeth?

A

Infraorbital nerve

39
Q

Which nerve innervates the mandibular teeth?

A

Inferior alveolar nerve

MODULE 3 - Gastrointestinal System (17 decks)

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