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Neuro III > oral cavity & submandibular region > Flashcards

oral cavity & submandibular region Flashcards

(72 cards)

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1
Q

what is included in the oral region

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

what makes up the oral cavity

A

oral cavity proper and vestibule

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3
Q

what are the boundaries of the oral cavity

A

lateral/anterior- teeth gums
superior- hard/soft palate
inferior- floor of mouth
posterior- fauces

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4
Q

what is the vestibule of oral cavity

A

space between lips/cheeks and teeth
opens externally at the oral fissure between lips
mm of facial expression controling shape and size of oral fissure
parotid duct opens into vestibule opposite to upper 2nd molar

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5
Q

What are the external and internal structure of lips

A

externally- covered by skin

internally covered by mucus membrane

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6
Q

what are the mm of facial expression

A 
orbicularis oris
levator labii superioris
levator anglui oris
zygomaticus
risorius
levator labii superioris alaeque nasi
depressor anguli oris
depressor labii inferioris
mentalis
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7
Q

what mm controls frowning

A

depressor labii inferioris, anguli oris

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8
Q

what mm elevate the upper lip

A

levaor labii superioris
levator anguli oris
zygomaticus major and minor
levator labii superioris alaeque nasi

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9
Q

what m protrudes lower lip

A

mentalis

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10
Q

what m flares nostrils

A

levator labii superioris alaeque nasi

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11
Q

what m causes a wide smile

A

risorius

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12
Q

what inn the upper lip

A

V2 via infraorbital branches

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13
Q

what inn lower lip

A

v3 via mental and buccal branches

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14
Q

describe lymph drainage of oral cavity

A

submental lymph nodes from medial part lower lip

submandibular lymph from all other regions

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15
Q

How many teeth do we have

A 
32 permanent
16 deciduous(baby teeth)
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16
Q

describe the names of teeth

A

incisors-4 canine-12 and premolars-4 molars-6

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17
Q

What is the gingivae

A

mucus membrane and fibrous tissue attached to the alveolar processes of the mandible and maxilla bones, also attached to neck of teeth

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18
Q

what inn the teeth

A

maxillary teet from superior alveolar branches of V2

mandibular teeth from inferior alveolar branches of V3

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19
Q

What inn the maxillary gingivae

A

palatine portion by nasopalatine and greater palatine n from V2
vestibular portion from superior alveolar branches of V2

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20
Q

what inn the mandicular gingivae

A

internal from lingual n V3

external from buccal and inferior alveolar n, mental branch V3

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21
Q

describe lymph drainage of teeth

A

submandibular lymph nodes
mandibular incissors drain to submental lymph
3rd maxillary molars drain to superior deep cervical lymph

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22
Q

What part of the tongue is immobile

A

posterior 1/3 because anchored to mandible, hyoid and syloid process

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23
Q

what are the external features of the tongue

A

terminal sulcus
foramen cecum
median sulcus
median and lateral glossoepiglottic folds
epiglottic vallevulae
papillae- vallate, filiform (no taste buds), fungiform, foliate, lingual tonsils
frenulum of tongue

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24
Q

What are the intrinsic mm of tongue

A

longitudinal
vertical
transverse

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25
what mm allow for tongue to curl
longitudinal
26
what are the extrinsic mm of tongue
genioglossus, hyoglossus, styloglossus, palatoglossus
27
o i action inn genioglossus
o: mental spine of mandible i: dorsum of tongue from apex to hyoid inn: hypoglossal n bilateraly protrudes tongue, acting unilateral and pushed tongue to opp side
28
o i action and inn hyoglossus
o: hyoid bone i: inferolateral side of tongue inn: hypoglossal n action: retracts, depresses tongue
29
o i action and inn styloglossus
o: styloid process i: superolateral side of tongue inn: hypoglossal n action: retracts, elevates tongue
30
o i inn action palatoglossus
o: soft palate i: tongue inn: vagus action: pulls tongue and soft palate together during swallowing
31
what is the motor inn to tongue
hypoglossal n GSE to all mm except palatoglossus | Vagus n SVE to palatoglossus
32
what are signs in someone who has damage to hypoglossal
tongue deviates toward lesioned side because genioglossus m push tongue contralaterally
33
What is the sensory inn of tongue
Anterior 2/3 GSA lingual branch V3, taste SVA facial via chorda tympani posterior 1/3 GVA IX, SVA taste IX
34
what is the sensory inn of epiglottic region
GVA internal laryngeal branch X | SVA taste superior laryngeal branch of X
35
Blood supply of tongue
lingual a
36
what are the branches of lingual a
``` dorsal lingual a (posterior tongue/palatine tonsil) sublingual a (floor of mouth) deep lingual a (anterior tongue) ```
37
describe venous drainage of tongue area
lingual cc drain to internal jugular v | venae comitantes hypoglossi drain floor and parallel course of hypoglossal n to end in common facial v
38
describe lymph drainage of tongue area
``` posterior 1/3- superior deep cervical lymph nodes (bilateral) anterior 2/3: lateral- submandibular ipsi middle- inferior deep cervical nodes b/l apex- submental (medial portion b/l) ```
39
What tonsils make up Waldeyer's ring
lingual tonsils pharyngeal tonsils palatine tonsils tubal
40
where are lingual tonsils
deep to mucosa of posterior 1/3 tongue
41
where are pharyngeal tonsils
in pharyngeal recess of nasopharynx
42
where are palatine tonsils
located at opening of oropharynx between arches
43
wehre are the tubal tonsils
opening of auditory tube
44
what are adenoids
inflamed pharyngeal tonsils
45
What n wraps around the submandibular duct
the lingual n
46
what mm does the submandibular duct run between
mylohyoid and hyoglossus
47
descirbe PAN to parotid gland
``` salivatory nucleus IX -tympanic branch- lesser petrosal otic ganglion auriculotemporal branch V3 secretomotor and stimulates gland secretion ```
48
the postgang fibers SAN to parotid run with what
external carotid nerve
49
describe PAN to submandibular sublingual glands
``` salivatory nucleus VII -chordatympani joins with lingual submandibular ganglion lingual branch V3 secretomotor and stimulates salivation ```
50
describe submandibular ganglion
suspended form lingual nerve within posterior floor oral cavity has postgang cell bodies PAN inn glnds
51
where do SAN posganglionc fibers run to submandibular and sublingual glands
external carotid n
52
what are the boundaries of the submandibular region
infeiror- anterior and posterior bellies of digastric m superior- mandible roof- cervical investing fascia floor- mylohyoi dm
53
what are the contents of the submandibular region
submandibular gland, facial a, XII, suprahyoid mm
54
what are the suprahyoid mm
digastric, stylohyoid, mylohyoid and geniohyoid
55
o i inn action digastric
o: ant belly on digastric fossa mandible. post belly on mastoid notch temporal bone i: hyoid inn: ant V3, post VII depresses mandible and elevates hyoid
56
o i inn action stylohyoid
o: styloid process i: hyoid VII elevates and retracts hyoid
57
o i action inn mylohyoid
o: mylohyoid line of mandible i: midline raphe and hyoid inn: mylohyoid branch of V3 elevates hyoi and floor of mouth, assists with opening mouth
58
o i action inn geniohyoid
o: mental spines of madible i: hyoid inn: C1 via hypoglossal elevates hyoid when hyoid is fixed, opens mouth
59
what are the branches of lingual a
``` dorsal lingual (posterior tongue) sublingual a (floor of mouth) deep lingual a (anterior tongue) ```
60
where do the lingual vv drain to
internal jugular v
61
describe venae comitatntes hypoglossi
parallel hypoglossal n and end in common facial v
62
how do sublingual drugs work
absorbed right into lingual vv which go to internal jugula v, rapid absorption
63
how do sublingual drugs work
absorbed right into lingual vv which go to internal jugula v, rapid absorption
64
What nn inn oral cavity
lingual n, hypoglossal n, glossopharyngeal n, vagus
65
describe course of lingual n
runs between hyoglossus and mylohyoid mm then wrap around submandibular duct and pierce tongue laterally GSA to floor mouth, and ant 2/3 tongue
66
describe information that runs in lingual but is not from V3
SVA via chorda tympani | GVE-P via chorda tympani
67
where does hypoglossal n run compated to occipital a
runs lateral to it
68
what type of info is in hypoglossal n
GSE- extrinsic tongue mm (except palatoglossus) | GSE- intrinsic tongue mm
69
where does IX course
passes between superior and middle constrictors , pierces tongue posteriorly
70
what type of info runs in IX
GVA posterior 1/3 tongue | SVA posterior 1/3 tongue
71
what branch of vagus enters oral cavity posteriorly
internal branch superior laryngeal n
72
what info is carried in internal laryngeal n
GVA epiglottic region | SVA epiglottic region

Neuro III (10 decks)

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