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Gross II > Oral Cavity > Flashcards

Oral Cavity Flashcards

1
Q

Roof of oral cavity

A

Palate

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2
Q

Floor

A

Tongue and oral mucosa

Suppported by mylohyoid and geniohyoid

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3
Q

Anterior and lateral boundaries

A

Lips and cheeks

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4
Q

Posterior boundary

A

Oropharyngeal isthmus, demarcated by palatoglossal arch

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5
Q

Two parts of oral cavity

A
  1. Oral vestibule

2. Oral cavity proper

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6
Q

Oral vestibule

A

Lies between lips and gums (external to teeth)

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7
Q

Openings into oral vestibule

A
  1. Labial glands

2. Parotid duct

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8
Q

Labial glands

A

Small salivary glands

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9
Q

Parotid duct

A

Opens lateral to maxillary second molar in vestibule

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10
Q

Oral cavity proper

A

Portion of oral cavity internal to tooth rows

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11
Q

Philtrum

A

Median groove seen externally, extends from nose to vermilion border of upper lip

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12
Q

Frenulum

A

Connects lip to corresponding gum by a median fold

Upper and lower

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13
Q

Lips contain

A

Orbicularis oric muscles and labial glands

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14
Q

Cheeks contain

A

Buccinator muscle and buccal glands

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15
Q

Palate form

A

Roof of mouth and floor of nasal cavity

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16
Q

Hard palate

A

Anterior 2/3 of palate (bone)

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17
Q

Soft palate

A

Posterior 1/3 of palate (muscle, aponeurosis, mucous membranes)

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18
Q

Hard palate consists of

A
  1. Palatine process of maxilla (anteriorly)

2. Horizontal plate of palatine (posteriorly)

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19
Q

Foramina of hard palate

A

Incisive foramen
Greater palatine foramen
Lesser palatine foramen

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20
Q

Hard palate covered by

A

Mucoperiosteum

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21
Q

Transverse palatine folds

A

Extend laterally within in mucoperiosteum

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22
Q

Transverse palatine folds function

A

Aid in gripping food against tongue during mastication

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23
Q

Soft palate is formed by

A

Mucous membrane covering aponeurosis

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24
Q

Soft palate is elevated during swallowing to close opening between ______ and ________ during swallowing.

A

Nasopharynx (above)

Oropharynx (below)

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25
Q

Soft palate is continuous with these two arches

A
  1. Palatoglossal arch

2. Palatopharyngeal arch

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26
Q

Palatoglossal arch made up of

A

Palatoglossal fold

Palatoglossus muscle

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27
Q

Palatopharyngeal arch

A

Palatopharyngeal fold

Palatopharyngeus muscle

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28
Q

Median projection of soft palate

A

Uvula

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29
Q

Tonsillar fossa contains

A

Palatine tonsil

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30
Q

Muscles of soft palate

A

Musculus uvulae
Levator veli palatini
Tensor veli palatini

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31
Q

Innervation of hard palate

A

Greater palatine and nasopalatine

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32
Q

Innervation of soft palate

A

Lesser palatine nerve

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33
Q

Hard palate blood supply

A

Greater palatine artery

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34
Q

Soft palate blood supply

A

Lesser palatine and facial arteries

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35
Q

Diagnosis of nerve damage to the palate

A

Uvula deviates to the opposite of nerve damage

  • deviates to left = right nerve damage
36
Q

Tongue is attached to what structures

A 
Hyoid bone
Mandible
Styloid process
Palate
Pharynx
37
Q

Functions of the tongue

A
  1. Taste
  2. Mastication
  3. Swallowing
  4. Speech
38
Q

Parts of tongue

A 
Apex
Margin
Dorsum
Inferior surface
Root
39
Q

Sulcus terminalis

A

V shaped groove

40
Q

Sulcus terminalis divides tongue into

A 
Oral part (ant 2/3)
Oropharyngeal part (post 1/3)
41
Q

Foramen cecum location

A

Located at apex of V of sulcus terminalis

42
Q

Foramen cecum is the remnant of what embryonic structure

A

Thyroglossal duct

43
Q

4 types of lingual papillae

A
  1. Filiform papillae
  2. Fungiform papillae
  3. Vallate papillae
  4. Foliate papillae
44
Q

Which papillae contain taste buds

A

Fungiform
Vallate
Foliate

45
Q

Papillae that are general sensory only

A

Filiform papillae

46
Q

Largest of lingual papillae

A

Vallate papillae

47
Q

Mushroom shaped papillae

A

Fungiform

48
Q

Papillae arranged into a V shaped row in front of sulcus terminalis

A

Vallate

49
Q

Grooves and ridges along margin of tongue

A

Foliate papillae

50
Q

Lingual tonsil location

A

Oropharyngeal surface of tongue

51
Q

Two folds that connect tongue to epiglottis

A

Median glossoepiglottic fold

Lateral glossoepiglottic fold

52
Q

Vallecula

A

Space on either side of medial glossoepiglottic fold

53
Q

Inferior surface of tongue connected to floor of mouth by

A

Frenulum of tongue

54
Q

Intrinsic muscles of tongue characteristics

A
  1. Origin and insertion in tongue
  2. Alter shape of tongue
  3. Innervated by hypoglossal nerve
55
Q

Nerves, vessels and extrinsic muscles enter or leave tongue through

A

Root of the tongue

56
Q

Extrinsic muscles of the tongue

A
  1. Genioglossus
  2. Hyoglossus
  3. Styloglossus
  4. Palatoglossus
57
Q

Palatoglossus innervation

A

Vagus nerve via pharyngeal plexus

58
Q

Extrinsic muscles of tongue supplied by

A

Hypoglossal nerve

**EXCEPT palatoglossus

59
Q

General sensation to anterior 2/3 of tongue

A

Lingual nerve— mandibular branch of trigeminal

60
Q

Taste to anterior 2/3 of tongue

A

Chorda tympani, branch of facial nerve

61
Q

Posterior 1/3 of tongue innervation

A

Glossopharyngeal nerve

**both general sensation and taste

62
Q

Blood supply to tongue

A

Lingual artery and vein

63
Q

Lymph nodes of tongue

A

Submental, submandibular, and deep cervical nodes

64
Q

Hardest substance in human body

A

Enamel

65
Q

Substance that covers the crown of the tooth

A

Enamel

66
Q

Dentin

A

Internal to enamel

67
Q

Pulp of the tooth

A

Central cavity of tooth

68
Q

Where blood vessels, nerves and lymphatics sit in a tooth

A

Pulp

69
Q

Cementum

A

Bone-like; covers the root

70
Q

Gingivae

A

Gums- Oral musosa that surrounds teeth and covers alveolar bone

71
Q

Part of tooth embedded in alveolar processes of maxilla and mandible

A

Root

72
Q

Incisor characteristics

A

Single rooted
Chisel-shaped
Cutting

73
Q

Canine characteristics

A

Single rooted
Pointed
Puncturing and tearing

74
Q

Premolars

A

Single or double rooted
Broad chewing surface
Grinding

75
Q

Molars

A

Multiple rooted
Broad chewing surface
Grinding

76
Q

Labial surface

A

Incisors and canines

Side facing lip

77
Q

Buccal surface

A

Premolars and molars

Side facing cheek

78
Q

Lingual surface

A

Side facing tongue

79
Q

Mesial surface

A

Side facing anteriorly or toward midline

80
Q

Distal surface

A

Side facing posteriorly or away from midline

81
Q

Occlusal surface

A

Chewing surface

82
Q

Deciduous teeth in each quadrant

A

2 incisors
1 canine
2 molars

(20 total)

83
Q

Permanent teeth in each quadrant

A

2 incisors
1 canine
2 premolars
3 molars

(32 total)

84
Q

Deciduous molars replaced by

A

Premolars

85
Q

Maxillary teeth innervated by

A

Superior alveolar branches from maxillary division of trigeminal

86
Q

Mandibular teeth innervated by

A

Inferior alveolar nerve from mandibular division of trigeminal

Gross II (29 decks)

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