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Neuroscience I test 2 > Oral and Nasal Cavities > Flashcards

Oral and Nasal Cavities Flashcards

1
Q

the skin of the cheek is what kind of epithelium and innervated by what

A

keratinized stratified squamous epithelium innervated by buccinator nerve (V)

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2
Q

what is superficial to the buccinator muscle and what is buccinator muscle innervated by

A

buccinator fat pad

-facial nerve

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3
Q

what pierces the buccinator muscle

A

the parotid duct

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4
Q

what nerve spirals around the submandibular duct

A

lingual nerve

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5
Q

in dissection of the floor of the mouth the submandibular duct will be ____ the lingual nerve and the sublingual gland will be ___

A

above

sublingual gland will be lateral

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6
Q

where is the hypoglossal nerve in rleatinoship of sublingual region

A

enters region more posterior and deeper and is closely adherent to the hyoglossus muscle

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7
Q

what crosses the medial side of the sublingual gland

A

the submandibular duct

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8
Q

sublingual gland is supplied by

A

sublingual branch of lingual artery

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9
Q

sympathetic nnervation to the sublingual gland

A

postganglionic sympathetic fibers originate in the superior cervical ganglion and reach the gland by coursing in the external carotid and facial plexuses

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10
Q

intrinsic muscles of the tongue are innervated by ____ fibers from what nerve

A

GSE hypoglossal nerve

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11
Q

regions of the tongue

A 
base (root)
margin (edge)
tip
dorsum (superior surface)
inferior surface
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12
Q

the dorsum of the tongue is divided into the _____ and ____

A

oral (anterior 2/3)
pharyngeal (posterior 1/3) portions
-divided by sulcus terminalis

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13
Q

sulcus terminalis extends from where to where

A

foramen cecum (midline) to palatoglossal folds (laterally)

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14
Q

where is the lingual tonsil located

A

on the dorsum of posterior one-third of tongue

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15
Q

oral portion of the tongue is derived from __

pharyngeal portion of tongue is derived from __

A

ectoderm

endoderm

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16
Q

the tongue is supplied by what artery

A

the lingual artery and its terminal branch the profunda lingual artery

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17
Q

lymphatics of the tongue drain where

A

deep cervical lymph nodes

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18
Q

where is the palatine tonsil located

A

between the palatoglossal and palatopharyngeal folds in the tonsillar fossa

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19
Q

during a tonsillectomy what vein is a frequent bleeder

A

tonsillar vein

tonsillar vein drains into the pharyngeal venous plexus and facial vein

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20
Q

lymphatic drainage from the tonsil is directly into the ___ nodes

A

jugulodigastric (tonsillar) nodes

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21
Q

greater palatine neurovascular bundle supplies ___ ___

A

hard palate

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22
Q

lesser palatine neurovascular bundle supplies ___ __

A

soft palate

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23
Q

the incisive foramen conveys what

A

nasopalatine nerve and vessels

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24
Q

the very anterior portion of the hard palate is supplied by what

A

branches of the nasopalatine

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25
tensor veli palatini muscle location
anterolateral to the levator palati muscle and audiotry tube | -tendon inserts on soft palate
26
what is the tensor palati innervated by
a small branch of the mandibular nerve (V)
27
function of the tensor palati
tenses soft palate and opens audiotry tube
28
levator veli palatini muscle location
inferior to auditory tube on lateral wall of nasopharynx | -inferior surface of temporal bone and part of auditory tube and inserts on soft palate
29
innervation of levator veli palatini
vagus nerve via pharyngeal plexus | -elevates soft palate
30
what happens when there is paralysis of the tensor or levator palate
allows muscles on the non paralyzed side to pull or deviate the uvula towards the normal side
31
where do fractures of the nose frequently occur
at the junction between the septal cartialge and ethmoid and vomer bones
32
the middle and inferior conchae condition air how
by regulation of blood flow to large venous sinuses (swell bodies)
33
during nasal congestion what happens to venous sinuses
become dilated and engorged with blood during nose cold which swells conchae and obliterates airflow through meatuses -blood pooling is what causes congestion
34
anterior portion of nasal cavity is ____ drainage so when you start crying it comes out nose
passive | posterior is active
35
what is the ethmoidal bulla
forms bony eminence overlying middle ethmoidal air cells
36
what is the hiatus semilunaris
crescent shaped trough located anterior and inferior to the ethmoidal bulla
37
where is the opening for the maxillary sinus
poseterior 1/3 of the hiatus semilunaris
38
the ethmoidal infundibulum is located where and drains what | -if sinuses drain through separate opening located anterior to hiatus its called what
anterosuperior portion of hiatus semilunaris, drains frontal and anterior ethmoidal sinuses -other called frontal recess
39
where is the sphenopalatine foramen located
posterior to the superior concha in submucosa
40
what does the sphenopalatine artery supply | -branches into what and terminal branch of what
septum and lateral wall of posteior 1/2 of nasal cavity - branches into posteior lateral and posterior septal - terminal branch of maxillary
41
where do the majority of nasal hemorrhages (epistaxis) occur?
kiesselbach's area | junction of septal branches of superior labial artery and sphenopalatine artery
42
blood supply to the anterior 1/3 of nasal cavity
anterior ethmoidal artery
43
blood supply to posterior 2/3 of nasal cavity
sphenopalatine artery
44
innervation to posterior 2/3 of nasal cavity
branches of sphenopalatine ganglion
45
innervation to anterior 1/3 of nasal cavity
anterior ethmoidal nerves (branch of nasociliary never V1)
46
what does the nasopalatine nerve innervate at whats it from
- branch of pterygopalatine ganglion | - innervates mucosa of gingiva and hard palate in area of upper incisors
47
torus tubarius
cartilaginous eminence above opening for auditory tube | tubal elevation
48
salpingopharyngeal fold
mucosal fold that extends between posterior part of torus and pharyngeal wall -salpingopharyngeus muscle underlies it and is minor elevator of the pharynx
49
maxillary sinus roof forms what | -clinical signif
the floor of the orbit | -blowout fractures of the orbit can cause contents to go into the maxillary sinus
50
posterior maxillary wall forms what
anterior wall of pterygopalatine fossa and infratemporal fossa
51
maxillary sinusitis associated with what | -maxillary infections can spread where
assocaited with toothache of first and second molars due to close relationship with sinus -maxillary infections may spread among frontal, anterior ethmoidal cells, nasal cavity, teeth, and maxillary sinus
52
the maxillary sinus can be used as surgical approach to reach what
SPG
53
how does the maxillary sinus drain
by ciliary action, gravity and negative pressure into one or more openings into hiatus semilunaris
54
anterior ethmoidal cells open into what
anterior part of hiatus semilunaris
55
middle ethmoidal cells open onto
surface of bulla ethmoidalis
56
posterior ethmoidal cells open into
superior meatus
57
posterior to sphenoidal sinus
pons, basilar artery
58
superior to sphenoidal sinus
pituitary
59
anterior to sphenoidal sinus
nasal cavity
60
inferior to sphenoidal sinus
nasopharynx
61
lateral to sphenoidal sinu
internal carotid, V1, and cavernous sinus

Neuroscience I test 2 (8 decks)

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