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Anatomy > Oral Cavity > Flashcards

Oral Cavity Flashcards

1
Q

Another name for mouth/oral cavity is?

A

Buccal cavity

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2
Q

What are the two parts of the palate?

A

Hard Palate
Soft Palate

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3
Q

Which palate is more rostral?

A

Hard palate

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4
Q

What is the hard palate made up of?

A

Palatine, maxillary, and incisive bones, covered by mucous membrane

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5
Q

Process of bringing food into the oral cavity

A

Prehension

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6
Q

The process of chewing food

A

Mastication

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7
Q

What are the teeth held in place by?

A

Periodontal Ligament

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8
Q

What are the cavities/sockets called where teeth are found?

A

Alveoli

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9
Q

The part of the tooth that projects above the gingiva

A

The crown

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10
Q

The part of the tooth that is embedded in the alveoli below the gingiva

A

The root

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11
Q

The tip of the root of a tooth is called?

A

The apex

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12
Q

What does the apex contain?

A

Blood vessels and nerves enter here

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13
Q

Area of tooth where the crown and root meet

A

The neck

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14
Q

Outer surface of teeth, facing toward the cheeks

A

Buccal surface

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15
Q

Outer surface of teeth, facing towards the lips

A

Labial surface

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16
Q

Inner surface of teeth, facing the tongue

A

Lingual surface

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17
Q

Inner surface of teeth, facing the soft palate

A

Palatal surface

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18
Q

Space between the teeth, facing the midline or center of dental arch

A

Mesial surface

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19
Q

Space between the teeth, facing away from the center of the dental arch

A

Distal surface

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20
Q

The surfaces on the upper and lower teeth that come together when the mouth is closed

A

Occlusal or masticatory

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21
Q

Directional term when referring toward the crown of a tooth

A

Coronal

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22
Q

Directional term when referring toward the root

A

Apical

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23
Q

Thin layer of white hard material that covers the crown

A

Enamel

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24
Q

What is the hardest substance in the body?

A

Enamel

25
Q

Layer under the enamel that forms the bulk of the tooth and is as hard as bone

A

Dentin

26
Q

Inner area that is surrounded by dentin

A

Pulp cavity

27
Q

Area of the tooth that contains blood supply and nerves that supply the tooth

A

Pulp cavity

28
Q

Teeth that do not continually grow because the apices of their roots are open for only a finite period of time

A

Brachyodont

29
Q

Teeth that grow continuously during most of the life of the animal because of a large reserve of crown beneath the gingiva

A

Hypsodont

30
Q

Species that have brachyodont teeth

A

Carnivores, humans, pigs (except for tusks)

31
Q

Species that have hypsodont teeth

A

Horses incisors
Boar’s canine teeth
Ruminant cheek teeth

32
Q

How many adult teeth do dogs have?

A

42

33
Q

How many adult teeth do cats have?

A

30

34
Q

How many adult teeth do horses have?

A

40

35
Q

How many adult teeth do ruminants (cattle) have

A

32

36
Q

What muscles anchor the tongue in place?

A

Extrinsic muscles

37
Q

What muscles make up majority of the mass of the tongue, originate and insert on the tongue itself?

A

Intrinsic muscles

38
Q

What are the 3 parts of the tongue?

A

Apex
Body
Root

39
Q

Free unattached mobile tip of the tongue

A

Apex

40
Q

Long and slender part that links the apex with the root

A

Body

41
Q

Anchors tongue to hyoid bone and sides of the mandible

A

Root

42
Q

What type of epithelium covers the exterior of the tongue?

A

Cornified stratified squamous epithelium

43
Q

What is saliva mainly composed of?

A

Water

44
Q

Enzyme found in saliva, along with immunoglobulins, helps control the bacterial population in the oral cavity

A

Lysozyme

45
Q

Enzyme found in saliva, digests starch

A

Amylase

46
Q

Which species lack salivary amylase?

A

Dogs, cats, ruminants

47
Q

Horses produce a ___________ amount of salivary amylase

A

Limited

48
Q

What are the functions of saliva?

A

Lubrication
Antibacterial action
pH Regulation
Thermoregulation
Enzymatic digestion

49
Q

What are the 3 main salivary glands?

A

Parotid
Mandibular
Sublingual

50
Q

Salivary gland located ventral to the ear; serous secretion; accounts for half the volume of saliva produced

A

Parotid

51
Q

Salivary glands located under the tongue; mixed secretion

A

Sublingual

52
Q

Salivary glands located caudal to angle of the jaw; mixed secretion

A

Mandibular

53
Q

What is the temporomandibular joint (TMJ)?

A

Condylar joint that forms connection between condylar process of mandible and mandibular fossa of temporal bone

54
Q

How many TMJ’s are there

A

2 - one on each side

55
Q

What are the movements of the TMJ?

A

Extension, flexion, translation

56
Q

Salivary secretion is regulated primarily by the _________ ___________

A

Nervous system

57
Q

___________ stimulation produces more watery saliva

A

Parasympathetic

58
Q

_________ stimulation produces a smaller amount of _______, ________ saliva

A

Sympathetic; thick, mucoid

59
Q

Thin Bonelike covering over the roots of brachyodont teeth; covers most of entire tooth superficial to the enamel in hyposodont teeth

A

Cementum

Anatomy (17 decks)

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