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GAS > Oral Cavity > Flashcards

Oral Cavity Flashcards

1
Q

boundries of the oral cavity

A

roof,floor,lateral walls, ant. opening, pos. aperture

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2
Q

oropharyngeal isthmus ?

A

Opening b/w oral cavity & oropharynx

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3
Q

oral vestibule

A

space b/w the lipss/cheeks and teeth, feeding tubes for broken jaw

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4
Q

oral cavity proper is enclosed by ?

A

dental archs

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5
Q

sensory oral cavity innervation is controlled predominantly by

A

branches of cn5

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6
Q

upper teeth and palate are controlled by ?

A

superior alveolar nerves - max nerve

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7
Q

lower teeth and oral part of tongue innervation ?

A

Inferior alveolar nerves & lingual nerves- V3

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8
Q

Oropharyns is innervated by

A

CN10

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9
Q

All glands above the level of oral fissure are innervated by

A

greater petrosal nerve

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10
Q

all glands below the level of the oral fissure are innervared by

A

chorda tympani

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11
Q

skeletal frame work of the oral cavity ?

A

Maxillae Palatine Bone,Sphenoid Bone,Temporal Bone,Hyoid, Mandible

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12
Q

maxillae vs palatine bones

A

1) Palatine processes form anterior 3/4 of hard palate; 2) Alveolar processes hold upper teeth

Palatine – forms posterior 1/4 of hard palate and attachment of the soft palate

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13
Q

sphenoid bone ?

A

pterygoid processes associated with soft palate structures
Pterygoid hamulus –
- pulley for tensor veli palatini muscle
- attaches upper end of pterygomandibular raphe

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14
Q

stylohyoid

A

Draw hyoid backwards & elevate tongue

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15
Q

inf mental spines of the mandible attach to the

A

geniohyoid

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16
Q

sup mental spine of the mandible attach to the

A

genioglossus

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17
Q

what muscles attach at the coronoid process of the mandible

A

massester and temporalis

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18
Q

what muscles attach at the the condylar process ?

A

articular disc od tmj and lateral pterygoid

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19
Q

wjat muscles attach at the ramus

A

medial pterygoid and masseter

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20
Q

the buccinator orginates from __ (3 places)

and joins the _?

A

Pterygomandibular raphe, Alveolar part of mandible, Alveolar process of maxilla
ant margin of the sup constrictor

21
Q

innervation of the buccinator ?

A

motor buccal branch if CN7

sensory: buccal branch of CNV3

22
Q

mylohyoid fuction and nerve

A

depress mandible and open mouth,
elevate and pull hypid forward
pulls larynx forward
nerve- nerve to mylohyoid of Inf alveolar nerve o V3

23
Q

geniohyoid function and innervation

A

pulls hyoid bone and attached larynx up and forward during swallowing
works with mylohyoid to depress mandible and open mouth
innervated by c1 that hitch hikes on cn7

24
Q

structures that pass through triangular aperture

A 
Hyoglossus & styloglossus mm
Lingual artery & vein
Lingual nerve, CN IX, CN XII
Lymphatics
Submandibular gland
25
Q

all papillae have taste buds except

A

filiform

26
Q

vallate papillae are innervated by

A

cn9

27
Q

foliate and fungiform are innervated by

A

cn7

28
Q

genioglossus: function and failure ?

A

depress and protrude tongue

failure= tongur falling to back of throat

29
Q

hyoglossus

A

retracts and depresses tongue

30
Q

what 2 nerves pass on the external surface of hyoglossus

A

CN12 AND LINGUAL

31
Q

Styloglossus f(x)

A

retract and elevate tongue

32
Q

palatoglossus ?

A

elevate back of tongue and depress soft palate

closes oropharyngeal isthmus

33
Q

Dorsal Lingual Veins travel with ?

A

Dorsal Lingual Veins: travels with CN XII; drains into IJV

34
Q

deep lingual vein follows?

A

Deep Lingual Vein:
Follows lingual a.
Drains into IJV

35
Q

CN9 innervates ?

A

Taste & general sensation to post. 1/3 of tongue
vallate papillae
Parotid Gland

36
Q

soft palate ?

A

Depresses to help close oropharyngeal isthmus

Elevates to separate nasopharynx from oropharynx

37
Q

tensor veli palatini

A 
Vertical muscular part
Horizontal fibrous part = palatine aponeurosis
Tenses soft palate
Opens pharyngotympanic tube
V3 = Med. Pterygoid branch
38
Q

levator veli palatini

A

Only muscle to elevate soft palate
Closes pharyngeal isthmus b/w nasopharynx & oropharynx
CN X

39
Q

palatopharyngeus

A

Depresses soft palate
Moves palatopharyngeal arch toward midline
Elevates pharynx during swallowing
CN X

40
Q

Palatoglossus

A 
Depresses soft palate
Moves palatoglossal arches to midline
Elevates back of tongue
Helps close oropharyngeal isthmus
CN X
41
Q

what does the greater palatine artery supply ?

A

it is a br. of maxillary a. and

supplies hard palate & palatal gingiva

42
Q

lesser palatine a and the palatine branch of the ascendinf palatine a. supplies the ?

A

soft palate

43
Q

Ascending palatine a.
br. of facial a.
supplies soft palate & palatine glands ?

A

acending palatine a

44
Q

hard and soft palate inneveration

A

hard=greater palatine n

soft= lesser palatine n

45
Q

the nasopalatine n innervates ?

A

gingiva & mucosa of incisors & canines

46
Q

Anterior Superior Alveolar Artery and nerve

A

Supplies upper incisors and canines

47
Q

Posterior Superior Alveolar Artery supplies ?

A

From maxillary a.

Supplies upper molars and premolars

48
Q

Posterior Superior Alveolar Nerve

A

innervates max mols

49
Q

Middle Superior Alveolar Nerve innervates

A

max premols

GAS (11 decks)

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