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Neuro Exam 3 > Oral Cavity, Submandibular Region > Flashcards

Oral Cavity, Submandibular Region Flashcards

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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
drainage of mandibular incisors
submental lymph nodes
26
drainage of 3rd maxillary molars
superior deep ceep cervical nodes
27
body of tongue
anterior 2/3 | -ends at apex
28
root of tongue
posterior 1/3 | -anchored
29
terminal sulcus
separates root of tongue from body embryonic site of oropharyngeal membrane**
30
foramen cecum
remnant of thyroglossal duct
31
median sulcus
midline
32
median and lateral glossoepiglottic folds
between tongue and epiglottis
33
valleculae
between lateral and median glossoepiglottic folds
34
filiform
no taste buds
35
order of taste buds (front to back)
fungiform > filiform > foliate (sides) > vallate
36
frenulum of tongue
underneath
37
intrinsic muscles of tongue
alter shape - longitudinal - shorten/retract/curl - vertical - flatten/broaden - transverse - narrow/elongate tongue
38
extrinsic muscles of tongue
alter position
39
genioglossus
mandible to dorsum of tongue - hypoglossal n. - protrude tongue b/l - pushes tongue to opposite side u/l
40
hyoglossus
hyoid to inferolateal side of tongue - hypoglossal n. - retract/depress tongue
41
styloglossus
styloid to superolateral side of tongue - hypoglossal n. - retract/elevate tongue
42
palatoglossus**
soft palate to tongue - vagus n. ** - pulls tongue and soft palate together during swallowing
43
innervation to tongue
hypoglossal - GSE to all muscles except palatoglossus | palaglottus - vagus SVE
44
hypoglossal nerve lesion
patient protrudes tongue - deviate toward affected side | -because functioning genioglossus pushes tongue contralateral
45
anterior 2/3 tongue sensory
GSA - lingual branch of V3
46
anterior 2/3 tongue taste
SVA - facial nerve - chorda tympani
47
posterior 1/3 tongue sensory
GVA - glossopharyngeal n
48
posterior 1/3 tongue taste
SVA - glossopharyngeal n.
49
epiglottic tongue sensory
GVA - internal laryngeal branch of vagus
50
epiglottis tongue taste
SVA - superior laryngeal branch of vagus
51
blood supply to tongue
lingual artery - from external carotid a
52
lingual veins
to internal jugular
53
vena comitantes hypoglossi
to common facial vein | -parallel hypoglossal nerve
54
lymph of tongue
``` posterior 1/3 - superior deep cervical lymph nodes anterior 2/3: -lateral - submandibular -middle - inferior deep cervical -apex - submental ```
55
lingual tonsils
deep to mucosa of posterior 1/3 tongue
56
pharyngeal tonsils
within pharyngeal recess of nasopharynx
57
palatine tonsils
opening of oropharynx - between palatoglossal and palatopharyngeal arches
58
tubal tonsils
openings of auditory tube
59
waldeyers ring
defensive ring of lymphoid tissue | -lingual, pharyngeal, palatine, tubal
60
adenoids
pharyngeal tonsil inflammation
61
salivary glands
parotid, sublingual, submandibular
62
sublingual glands
floor oral cavity | -open into oral cavity
63
submandibular glands
superficial - submandibular triangle | deep - posterior border of mylohyoid
64
whartons duct
submandibular duct | -anterior course from deep part of gland to open in floor of mouth
65
lingual nerve
wraps around submandibular duct
66
parasympathetic to parotid gland
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
PS on parotid gland
stimulate secretion
68
sympathetic on parotid gland
postganglionic via SCG | -postganglionic travel with external carotid n to parotid tissue
69
S on parotid gland
vasomotor
70
submandibular ganglion
suspended from lingual n in posterior floor oral cavity cell bodies of postganglionic PS fibers innervation to sublingual and submandibular glands
71
parasympathetics to sublingual/submandibular glands
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
PS to SL/SM glands
stimulate salivation
73
sympathetics to SL/SM glands
postganglionic cell bodies in SCG | -postganglionic fibers - external carotid nerve to gland tissue
74
boundaries of submandibular region
inferior - A/P bellies of digastric superior - mandibule roof - cervical investing fascia floor - mylohyoid m
75
anterior belly digastric nerve?
V3
76
posterior belly digastric nerve?
CN VII
77
contents of submandibular region
submandibular gland facial artery CN VII suprahyoid m.
78
action of digastric
depress mandible/elevate hyoid
79
action of stylohyoid
elevate/retract hyoid
80
action of mylohyoid
elevate hyoid and floor of mouth, assist with opening mouth
81
action of geniohyoid
elevate hyoid, when hyoid fixed - opens nouth
82
sublingual absorption of drugs
lingual veins directly to internal jugular vein - drugs in sublingual area absorbed rapidly - ex/ nitro
83
paralingual space
between hyoglossus and mylohyoid
84
chorda tympani
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
hypoglossal nerve
GSE - extrinsic and intrinsic muscles of tongue except palatoglossus***
86
glossopharyngeal nerve
CN IX - GVA posterior 1/3 tongue - SVA posterior 1/3 of tongue
87
vagus nerve
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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