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Anatomy exam 5 > oral cavity > Flashcards

oral cavity Flashcards

1
Q

what is the oral cavity

A

everything from the lips to the palatoglossal fold

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2
Q

location of the labial artery and vein

A

just deep to orbicularis oris near margins

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3
Q

why is the soft palate mobile

A

to aid in swallowing (no food, but still can breath

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4
Q

what does the palatoglossal fold overly

A

palatoglossus muscle

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5
Q

the portion of the soft palate that hangs down in the midline

A

uvula(made of the uvular muscle)

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6
Q

what makes up the soft palate

A

muscles that interdigitate from either side

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7
Q

what lies right under the palatal mucosa

A

palatine glands

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8
Q

what muscles interdigitate in the soft palate

A

palatoglossus m
levator veli palatini m
palatopharyngeus m

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9
Q

what creates the aponeurosis of the soft palate

A

tensor veli palatini m tendon that hooks under the pterygoid hamulus

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10
Q

roll of tensor veli palatini m

A

provides tension to the soft palate so other muscles can move it

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11
Q

whats more medial, levator veli palatini or tensor veli palatini m

A

levator veli palatini m

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12
Q

palatini muscles are assocated with what plate

A

medial pyterygoid plate

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13
Q

roll of levator veli palatini m

A

lift the soft palate

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14
Q

the descending palatine a gives rise to

A

greater and lesser palatine aa

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15
Q

where does the descending palatine a travel through

A

palatine canal

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16
Q

what does the greater palatine a supply

A

anterior palate passing through greater palatine foramen

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17
Q

what does the lesser palatine a supply

A

posterior palate passing through the lesser palatine foramen

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18
Q

the ascending palatine artery branches from

A

facial a

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19
Q

the palatine a braches from

A

ascending pharyngeal a

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20
Q

what is the vascular supply of the palte

A

descing palatine artery (greater and lesser palatine)
ascending palatine
palatine a

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21
Q

venous drainage of the palate

A

pterygoid and pharyngeal plexuses

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22
Q

sensory and para and sympa innervation of the palate

A

nasopalatine nerve
greater palatine nerve
Lesser palatine

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23
Q

mandibular n (CN V3) innervates what muscle of the palate

A

tesnor veli palatini

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24
Q

Vagus n (CN X) innervates what muscle of the palate

A 
levator veli palatini mm
Palatoglossus mm
palatopharyngeus mm
musculus uvula
Salpingopharyngeous mm (Via pharyngeal plexus)
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25
Q

arteries for the palatine tonsils:

A 
Tonsilar branches of:
lesser palatine artery
ascending pharygneal artery
ascending palatine artery
facial artery
dosal lingual artery
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26
Q

bleeding from tonsillectomy may result from

A

from arteries and paratonsillar veins

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27
Q

what nerve may be damaged during a tonsillectomy

A

CN IX (lies on lateral pharyngeal wall)

28
Q

the epithelial change on the sublingual area

A

fimbriated fold

29
Q

the midline fold of the tounge

A

frenulum

30
Q

what overlies the sublingual gland under the tongue

A

sublingual fold

31
Q

the openings of the submandibular ducts

A

sublingual caruncles

32
Q

parts of the submandibular gland

A

intra and extra oral compents

33
Q

travel of the lingual nerve in realtion to the submandibular duct

A

comes in laterally
goes under the duct
comes up medially
(Crosses 2x)

34
Q

what branch of trigeminal does the submandibular ganglion use

A

CN V3

35
Q

what does the Lingual N branch off

A

CN V3

36
Q

where does the LIngual N come from

A

between lat and medial pterygoid mm

37
Q

where does the submandibular ganglion get ists pre ganglionic fibers from

A

CN VII

38
Q

what all geos to submandiular ganglion

A

Lingual nerve from V3
Chorda tympani CN VII also preganglionic parasympa
sympa fibers from external carotid plexus

39
Q

lesion of nerve after chorda tympani and lingual nerve come together leads to

A

loss of taste and general sensory (ant 2/3)

parasympathetics to submandibular and sublingual glands

40
Q

lesion of just corda tympani leads to

A

don’t loose general senation

41
Q

location of submandibular ganglion

A

3rd molar, suspended from lingual n by 2 or more short n branches

42
Q

parasympa roll of submandibular ganglion

A

relays parasympa fibers from chorda tympani (CN VII) to travel to submandibular and sublingual galnds

43
Q

hypoglossal nerve serves

A

muscles of tongue

44
Q

location of the hypoglossal N (CN XII)

A

deep to posterior belly of digastric and stylohyoid mm
anterior between submandibular gland and hyoglossus m
inferior to lingual n
superior to mylohyoid m

45
Q

where does the hypoglossal N end

A

posterior tongue to provide motor innervation

46
Q

travel of the glossopharyngeal N (CN XI)

A

lateral to stylopharyngeus m to enter pharynx
beween superior and middle constrictor mm
cont anteriorly thru tonsillar region

47
Q

roll of glossopharyngeal N (CN IX)

A

ends in posterior tongue to recieve sensory innervation

48
Q

connections of the styloglossus m

A

styloid process to tongue

49
Q

hyoglossus m connections

A

hyoid bone to tongue

50
Q

genioglossus m

A

genoid tubercle of mandible to tongue

51
Q

directions of the muscles of the tongue

A

superior longitudinal
vertical
transverse

52
Q

extrinsic muscles of the tongue

A

palatoglossus
styloglossus
hyoglossus
genioglossus

53
Q

unilateral paralysis of CN XII leads to

A

can’t protrcude straight

54
Q

bilateral paralysis of genioglossus m leads to

A

tongue falls back and may occlude airway

55
Q

what supplies most of the superficial structures of the oral cavity

A

Facial A

56
Q

what supplies most of the deep structures of the oral cavity

A

Lingual A

57
Q

3 branches of the lingual a to supply the tongue

A

dorsal lingual a
deep lingual a
sublingual a

58
Q

venous drainage of oral cavity

A

drain to IJV

59
Q

arteries in front of and behind the hypoglossal muscle

A

behind: dorsal lingual artery and vein
infront: deep lingual artery and vein, sublingual artery and vein

60
Q

special sensory of tongue

A 
Chorda tympani (CN VII): taste anterior 2/3
glossopharyngeal n (CN IX): post 1/3
Vagus( CN X): root of tongue and epiglottis
61
Q

what does the Chorda tympani n (CN VII) travel with

A

lingual n

62
Q

general sensory for tongue

A 
Lingual N (CN V3): anterior 2/3
Glossopharyngeal N (CN IX): post 1/3
Vagus(CN X): root of tongue and epiglottis
63
Q

arterior supply of oral cavity

A

Anterior superior alveolar a
middle superior alveolar a
posterior superior alveolar a
inferior alveolar a

64
Q

what oral cavity arteries are from maxillary a

A

posterior superior alveolar a

inferior alveolar a

65
Q

what oral cavity arteries are from infraorbital a

A

anterior superior alveolar a

middle superior alveolar a

66
Q

venous drainage of oral cavity

A

pterygoid pleuxes: internal-> retromandibular-> splits to common facal then IVC or to EJV
superficial: facial vein then IVC

Anatomy exam 5 (18 decks)

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