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oral cavity - BDS 1 > mouth and tongue :) > Flashcards

mouth and tongue :) Flashcards

1
Q

what is the vestibule

A

sulki between checks and the teeth

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2
Q

what is the oral cavity proper

A

space inside and infcluding teeth

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3
Q

lining musocsa

A

tranlucent
thin
fragile

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4
Q

what is found at the back of the oral cavity

A 
uvula
palatoglossal arch
palatopharynheal
palatine tonsils
soft palate
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5
Q

which is the posterior and anterior arch

A

posterior - palatopharyngeal

anterior- palatoglossal folds

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6
Q

what is the boundary between the mouth and oropharynx

A

palatoglossal arch

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7
Q

what is found between the two arches

A

palatine tonsils

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8
Q

what does the lingual tonsil do

A

senses invading pathogens in the oral cavity

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9
Q

what is the anatomical boundary between the thirds of the tongue

A

sulcus terminalis (groove on tongue)

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10
Q

types of papillae

A

circumvallate
filliform
fungiform

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11
Q

circumvallate papillae

A

contain tast buds

directly infront of sulcus terminalis

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12
Q

filliform

A

do not contain taste buds

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13
Q

fungi form

A

contain taste buds

mushrooms in cross sections

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14
Q

what is found on the ventral surface of the tongue

A

lining muscosa
lingual veins
lingual frenulum
sublingual papillae

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15
Q

sublingual papillae

A

where saliva enters the OC in the floor of the mouth

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16
Q

parotid duct

A

pierces through buccinator into OC (opposite upper molar teeth)

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17
Q

whartons duct

A

(found in sublingual papillae)

allows saliva to drain into the floor of the mouth

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18
Q

extrinsic muscles of the tongue

A

palatoglossis
styloglossus
genioglossus
hyoglossus

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19
Q

distinguish extrinsic muscles of tongue

A

attach to skull and tongue

contract to pull tongue towards attachment i.e. change position of tomgue

20
Q

palatoglossus and attachment

A 
elevates posterior tongue or depress soft palate
palatine aponeurosis (roof of mouth)
21
Q

styloglossus

A

retracts tongue back towards styloid process
elevates side of tongue
(styloid process to lateral border of tongue)

22
Q

genioglossus

A

wide range of actions
bulk of tongue, fan shaped
genial tubercle attachment

23
Q

hyoglossus

A

depresses tongue and side of tongue

hyoid bone into lateral border of tomgue

24
Q

distinguish intrinsic muscles of tongue

A

both attachments within tongue

change shape f tongue

25
Q

what are the intrinsic muscles innervated by

A

hypoglossal 12

26
Q

superior longitudinal

A

shortens tongue

curls apex upwards

27
Q

inferior longitudinal

A

shortens tongue

curls apex downwards (tip of tongue)

28
Q

transverse muscle

A

narrow and lengthen tongue

run L to right

29
Q

vertical musccle

A

broadens and flattens

30
Q

intrinsic muscles of the tongue

A

transverse
vertical
superior longitudintal
inferior longitudinal

31
Q

motor innervation of tongue

A

hypoglossal 12

32
Q

sensory innervation of tongue

A

glossopharyngeal 9 posterior part of tongue
front:
chords tympani, taste (branch of 7 facial)
lingual (v3 of trigeminla), general sensation

33
Q

inferior alveolar nerve

A

manbular branch of CN V
into mandible through mandible fomramen, exists mental foramen as mental nerve
supplies lower dentition, lower lip and chin

34
Q

lingual nerver

A

innervates floor or mouth and tongue
not encased in bone
any procedures of the floor of mouth the lingual nerve will be anaesthetised
branch of V3

35
Q

what fuse further down in the OC

A

chords tympani and lingual

36
Q

what is in the roof of the mouth plus explsin

A

rugi (increase friction and SA)
alveloar ridge (where tip of tongue flicks to roof of mouth)
oral masticatory muscosa (bound tight to bone)

37
Q

what is directly above the hard palate

A

nasal conches

38
Q

what is above the set palate

A

nasopharynx

39
Q

what elevates the soft palate

A

levator veli palatini

40
Q

what tenses the soft palate

A

tensor veli palatini

41
Q

what depresses the soft palate

A

palatoglossis

palatopharyngeus

42
Q

direction of tensor veil palatini

A

down, then hooks around pteryoi hamulus so fibres horizontal

43
Q

what innervates soft palate muscles

A

vagus

except TVP branch of V3

44
Q

what does the eustation tube do

A

connects middle ear with back of pharynx

allows drainage of muses secretion to back of pharyxn

45
Q

how is LVP and eustation tube linked

A

attach around opening of eusattio tube
LVP can pull on tube
when swallowing LVP opens tube allowing pressure to equalise

46
Q

what happens if a child is born with cleft palate

A

weak actin of TVP and LVP on auditory attachment (palatal attachment insecure)
auditory tube does not open efficiently middle ear doesn’t drain (ear infections), conductive hearing loss

oral cavity - BDS 1 (66 decks)

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