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Neuro Exam 3 > Oral Cavity, Submandibular Region > Flashcards

Oral Cavity, Submandibular Region Flashcards

1
Q

oral region

A 
oral cavity
cheeks and lips
teeth and gingiva
tongue
tonsils
salivary glands
palate
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2
Q

oral cavity

A

oral cavity proper and vestibule

teeth, tongue, gingiva, all three salivary glands

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3
Q

vestibule

A

space between cheeks and teeth

opens externally at oral fissure between lips

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4
Q

parotid duct

A

opens into vestibule opposite upper 2nd molar

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5
Q

posterior boundary oral cavity proper

A

fauces

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6
Q

closes lips/mouth

A

orbicularis oris

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7
Q

elevates upper lip

A 
levator labii superioris
levator anguli oris
zygomaticus major
zygomaticus minor
levator labii superioris alaeque nasi
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8
Q

wide smile

A

risorius

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9
Q

protrude lower lip

A

mentalis

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10
Q

depress lower lip

A

depressor angli oris

depressor labii inferioris

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11
Q

flare nostril

A

levator labii superioris alaeque nasi

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12
Q

upper lip innervation

A

V2 via infraorbital branches

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13
Q

lower lip innervation

A

V3 via mental and buccal branches

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14
Q

lymph drainage medial lower lip

A

submental lymph nodes

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15
Q

lymph drainage all other regions

A

submandiular lymph nodes

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16
Q

permanent teeth?

A

32

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17
Q

baby teeth

A

16

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18
Q

different teeth?

A

4 incisors
2 canine
2 premolar
6 molar

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19
Q

gingivae

A

mucus membrane and fibrous tissue

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20
Q

maxillary teeth innervation

A

superior alveolar branches of V2

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21
Q

mandibular teeth innervation

A

inferior alveolar branches of V3

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22
Q

innervation of maxillary gingiva

A

palatine - nasopalatine n and greater palatine n (V2)

vestibular - superior alveolar branches of V2

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23
Q

innervation of manibular gingiva

A

internal - lingual n V3

external - buccal n V3 and inferior alveolar n - mental branch V3

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24
Q

lymph drainage of teeth/gingiva

A

most to submandibular

  • mandibular incisors to submental
  • 3rd maxillary molards to superior deep cervical lymph nodes
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25
Q

drainage of mandibular incisors

A

submental lymph nodes

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26
Q

drainage of 3rd maxillary molars

A

superior deep ceep cervical nodes

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27
Q

body of tongue

A

anterior 2/3

-ends at apex

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28
Q

root of tongue

A

posterior 1/3

-anchored

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29
Q

terminal sulcus

A

separates root of tongue from body

embryonic site of oropharyngeal membrane**

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30
Q

foramen cecum

A

remnant of thyroglossal duct

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31
Q

median sulcus

A

midline

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32
Q

median and lateral glossoepiglottic folds

A

between tongue and epiglottis

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33
Q

valleculae

A

between lateral and median glossoepiglottic folds

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34
Q

filiform

A

no taste buds

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35
Q

order of taste buds (front to back)

A

fungiform > filiform > foliate (sides) > vallate

36
Q

frenulum of tongue

A

underneath

37
Q

intrinsic muscles of tongue

A

alter shape

  • longitudinal - shorten/retract/curl
  • vertical - flatten/broaden
  • transverse - narrow/elongate tongue
38
Q

extrinsic muscles of tongue

A

alter position

39
Q

genioglossus

A

mandible to dorsum of tongue

  • hypoglossal n.
  • protrude tongue b/l
  • pushes tongue to opposite side u/l
40
Q

hyoglossus

A

hyoid to inferolateal side of tongue

  • hypoglossal n.
  • retract/depress tongue
41
Q

styloglossus

A

styloid to superolateral side of tongue

  • hypoglossal n.
  • retract/elevate tongue
42
Q

palatoglossus**

A

soft palate to tongue

  • vagus n. **
  • pulls tongue and soft palate together during swallowing
43
Q

innervation to tongue

A

hypoglossal - GSE to all muscles except palatoglossus

palaglottus - vagus SVE

44
Q

hypoglossal nerve lesion

A

patient protrudes tongue - deviate toward affected side

-because functioning genioglossus pushes tongue contralateral

45
Q

anterior 2/3 tongue sensory

A

GSA - lingual branch of V3

46
Q

anterior 2/3 tongue taste

A

SVA - facial nerve - chorda tympani

47
Q

posterior 1/3 tongue sensory

A

GVA - glossopharyngeal n

48
Q

posterior 1/3 tongue taste

A

SVA - glossopharyngeal n.

49
Q

epiglottic tongue sensory

A

GVA - internal laryngeal branch of vagus

50
Q

epiglottis tongue taste

A

SVA - superior laryngeal branch of vagus

51
Q

blood supply to tongue

A

lingual artery - from external carotid a

52
Q

lingual veins

A

to internal jugular

53
Q

vena comitantes hypoglossi

A

to common facial vein

-parallel hypoglossal nerve

54
Q

lymph of tongue

A 
posterior 1/3 - superior deep cervical lymph nodes
anterior 2/3:
-lateral - submandibular
-middle - inferior deep cervical
-apex - submental
55
Q

lingual tonsils

A

deep to mucosa of posterior 1/3 tongue

56
Q

pharyngeal tonsils

A

within pharyngeal recess of nasopharynx

57
Q

palatine tonsils

A

opening of oropharynx - between palatoglossal and palatopharyngeal arches

58
Q

tubal tonsils

A

openings of auditory tube

59
Q

waldeyers ring

A

defensive ring of lymphoid tissue

-lingual, pharyngeal, palatine, tubal

60
Q

adenoids

A

pharyngeal tonsil inflammation

61
Q

salivary glands

A

parotid, sublingual, submandibular

62
Q

sublingual glands

A

floor oral cavity

-open into oral cavity

63
Q

submandibular glands

A

superficial - submandibular triangle

deep - posterior border of mylohyoid

64
Q

whartons duct

A

submandibular duct

-anterior course from deep part of gland to open in floor of mouth

65
Q

lingual nerve

A

wraps around submandibular duct

66
Q

parasympathetic to parotid gland

A

preganglionic - with glossopharyngeal nerve CN IX

reforms as lesser petrosal n past middle ear

synapses in otic ganglion

postganglionic - distributes with V3
-via auriculotemporal branch

67
Q

PS on parotid gland

A

stimulate secretion

68
Q

sympathetic on parotid gland

A

postganglionic via SCG

-postganglionic travel with external carotid n to parotid tissue

69
Q

S on parotid gland

70
Q

submandibular ganglion

A

suspended from lingual n in posterior floor oral cavity

cell bodies of postganglionic PS fibers

innervation to sublingual and submandibular glands

71
Q

parasympathetics to sublingual/submandibular glands

A

preganglionic with facial n. CN VII
-gives rise to chorda tympani n.

joins lingual n.
-synapse in submandibular ganglion

postganglion - lingual branch of V3

72
Q

PS to SL/SM glands

A

stimulate salivation

73
Q

sympathetics to SL/SM glands

A

postganglionic cell bodies in SCG

-postganglionic fibers - external carotid nerve to gland tissue

74
Q

boundaries of submandibular region

A

inferior - A/P bellies of digastric
superior - mandibule
roof - cervical investing fascia
floor - mylohyoid m

75
Q

anterior belly digastric nerve?

76
Q

posterior belly digastric nerve?

77
Q

contents of submandibular region

A

submandibular gland
facial artery
CN VII
suprahyoid m.

78
Q

action of digastric

A

depress mandible/elevate hyoid

79
Q

action of stylohyoid

A

elevate/retract hyoid

80
Q

action of mylohyoid

A

elevate hyoid and floor of mouth, assist with opening mouth

81
Q

action of geniohyoid

A

elevate hyoid, when hyoid fixed - opens nouth

82
Q

sublingual absorption of drugs

A

lingual veins directly to internal jugular vein

  • drugs in sublingual area absorbed rapidly
  • ex/ nitro
83
Q

paralingual space

A

between hyoglossus and mylohyoid

84
Q

chorda tympani

A

branch of CN VII - given off within middle ear

merges with lingual nerve (V3)

SVA to anterior 2/3 tongue
GVE-P to submandibular ganglion to SM/SL glands

85
Q

hypoglossal nerve

A

GSE - extrinsic and intrinsic muscles of tongue

except palatoglossus***

86
Q

glossopharyngeal nerve

A

CN IX

  • GVA posterior 1/3 tongue
  • SVA posterior 1/3 of tongue
87
Q

vagus nerve

A

internal branch of superior laryngeal nerve - enters oral cavity posteriorly

GVA - epiglottic tongue
SVA - epiglottic tongue

Neuro Exam 3 (15 decks)

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