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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
Soft palate is continuous with these two arches
1. Palatoglossal arch | 2. Palatopharyngeal arch
26
Palatoglossal arch made up of
Palatoglossal fold | Palatoglossus muscle
27
Palatopharyngeal arch
Palatopharyngeal fold | Palatopharyngeus muscle
28
Median projection of soft palate
Uvula
29
Tonsillar fossa contains
Palatine tonsil
30
Muscles of soft palate
Musculus uvulae Levator veli palatini Tensor veli palatini
31
Innervation of hard palate
Greater palatine and nasopalatine
32
Innervation of soft palate
Lesser palatine nerve
33
Hard palate blood supply
Greater palatine artery
34
Soft palate blood supply
Lesser palatine and facial arteries
35
Diagnosis of nerve damage to the palate
Uvula deviates to the opposite of nerve damage - deviates to left = right nerve damage
36
Tongue is attached to what structures
``` Hyoid bone Mandible Styloid process Palate Pharynx ```
37
Functions of the tongue
1. Taste 2. Mastication 3. Swallowing 4. Speech
38
Parts of tongue
``` Apex Margin Dorsum Inferior surface Root ```
39
Sulcus terminalis
V shaped groove
40
Sulcus terminalis divides tongue into
``` Oral part (ant 2/3) Oropharyngeal part (post 1/3) ```
41
Foramen cecum location
Located at apex of V of sulcus terminalis
42
Foramen cecum is the remnant of what embryonic structure
Thyroglossal duct
43
4 types of lingual papillae
1. Filiform papillae 2. Fungiform papillae 3. Vallate papillae 4. Foliate papillae
44
Which papillae contain taste buds
Fungiform Vallate Foliate
45
Papillae that are general sensory only
Filiform papillae
46
Largest of lingual papillae
Vallate papillae
47
Mushroom shaped papillae
Fungiform
48
Papillae arranged into a V shaped row in front of sulcus terminalis
Vallate
49
Grooves and ridges along margin of tongue
Foliate papillae
50
Lingual tonsil location
Oropharyngeal surface of tongue
51
Two folds that connect tongue to epiglottis
Median glossoepiglottic fold | Lateral glossoepiglottic fold
52
Vallecula
Space on either side of medial glossoepiglottic fold
53
Inferior surface of tongue connected to floor of mouth by
Frenulum of tongue
54
Intrinsic muscles of tongue characteristics
1. Origin and insertion in tongue 2. Alter shape of tongue 3. Innervated by hypoglossal nerve
55
Nerves, vessels and extrinsic muscles enter or leave tongue through
Root of the tongue
56
Extrinsic muscles of the tongue
1. Genioglossus 2. Hyoglossus 3. Styloglossus 4. Palatoglossus
57
Palatoglossus innervation
Vagus nerve via pharyngeal plexus
58
Extrinsic muscles of tongue supplied by
Hypoglossal nerve **EXCEPT palatoglossus
59
General sensation to anterior 2/3 of tongue
Lingual nerve— mandibular branch of trigeminal
60
Taste to anterior 2/3 of tongue
Chorda tympani, branch of facial nerve
61
Posterior 1/3 of tongue innervation
Glossopharyngeal nerve **both general sensation and taste
62
Blood supply to tongue
Lingual artery and vein
63
Lymph nodes of tongue
Submental, submandibular, and deep cervical nodes
64
Hardest substance in human body
Enamel
65
Substance that covers the crown of the tooth
Enamel
66
Dentin
Internal to enamel
67
Pulp of the tooth
Central cavity of tooth
68
Where blood vessels, nerves and lymphatics sit in a tooth
Pulp
69
Cementum
Bone-like; covers the root
70
Gingivae
Gums- Oral musosa that surrounds teeth and covers alveolar bone
71
Part of tooth embedded in alveolar processes of maxilla and mandible
Root
72
Incisor characteristics
Single rooted Chisel-shaped Cutting
73
Canine characteristics
Single rooted Pointed Puncturing and tearing
74
Premolars
Single or double rooted Broad chewing surface Grinding
75
Molars
Multiple rooted Broad chewing surface Grinding
76
Labial surface
Incisors and canines | Side facing lip
77
Buccal surface
Premolars and molars | Side facing cheek
78
Lingual surface
Side facing tongue
79
Mesial surface
Side facing anteriorly or toward midline
80
Distal surface
Side facing posteriorly or away from midline
81
Occlusal surface
Chewing surface
82
Deciduous teeth in each quadrant
2 incisors 1 canine 2 molars (20 total)
83
Permanent teeth in each quadrant
2 incisors 1 canine 2 premolars 3 molars (32 total)
84
Deciduous molars replaced by
Premolars
85
Maxillary teeth innervated by
Superior alveolar branches from maxillary division of trigeminal
86
Mandibular teeth innervated by
Inferior alveolar nerve from mandibular division of trigeminal

Gross II (29 decks)

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