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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
Q

tensor veli palatini muscle location

A

anterolateral to the levator palati muscle and audiotry tube

-tendon inserts on soft palate

26
Q

what is the tensor palati innervated by

A

a small branch of the mandibular nerve (V)

27
Q

function of the tensor palati

A

tenses soft palate and opens audiotry tube

28
Q

levator veli palatini muscle location

A

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
Q

innervation of levator veli palatini

A

vagus nerve via pharyngeal plexus

-elevates soft palate

30
Q

what happens when there is paralysis of the tensor or levator palate

A

allows muscles on the non paralyzed side to pull or deviate the uvula towards the normal side

31
Q

where do fractures of the nose frequently occur

A

at the junction between the septal cartialge and ethmoid and vomer bones

32
Q

the middle and inferior conchae condition air how

A

by regulation of blood flow to large venous sinuses (swell bodies)

33
Q

during nasal congestion what happens to venous sinuses

A

become dilated and engorged with blood during nose cold which swells conchae and obliterates airflow through meatuses
-blood pooling is what causes congestion

34
Q

anterior portion of nasal cavity is ____ drainage so when you start crying it comes out nose

A

passive

posterior is active

35
Q

what is the ethmoidal bulla

A

forms bony eminence overlying middle ethmoidal air cells

36
Q

what is the hiatus semilunaris

A

crescent shaped trough located anterior and inferior to the ethmoidal bulla

37
Q

where is the opening for the maxillary sinus

A

poseterior 1/3 of the hiatus semilunaris

38
Q

the ethmoidal infundibulum is located where and drains what

-if sinuses drain through separate opening located anterior to hiatus its called what

A

anterosuperior portion of hiatus semilunaris, drains frontal and anterior ethmoidal sinuses

-other called frontal recess

39
Q

where is the sphenopalatine foramen located

A

posterior to the superior concha in submucosa

40
Q

what does the sphenopalatine artery supply

-branches into what and terminal branch of what

A

septum and lateral wall of posteior 1/2 of nasal cavity

  • branches into posteior lateral and posterior septal
  • terminal branch of maxillary
41
Q

where do the majority of nasal hemorrhages (epistaxis) occur?

A

kiesselbach’s area

junction of septal branches of superior labial artery and sphenopalatine artery

42
Q

blood supply to the anterior 1/3 of nasal cavity

A

anterior ethmoidal artery

43
Q

blood supply to posterior 2/3 of nasal cavity

A

sphenopalatine artery

44
Q

innervation to posterior 2/3 of nasal cavity

A

branches of sphenopalatine ganglion

45
Q

innervation to anterior 1/3 of nasal cavity

A

anterior ethmoidal nerves (branch of nasociliary never V1)

46
Q

what does the nasopalatine nerve innervate at whats it from

A
  • branch of pterygopalatine ganglion

- innervates mucosa of gingiva and hard palate in area of upper incisors

47
Q

torus tubarius

A

cartilaginous eminence above opening for auditory tube

tubal elevation

48
Q

salpingopharyngeal fold

A

mucosal fold that extends between posterior part of torus and pharyngeal wall
-salpingopharyngeus muscle underlies it and is minor elevator of the pharynx

49
Q

maxillary sinus roof forms what

-clinical signif

A

the floor of the orbit

-blowout fractures of the orbit can cause contents to go into the maxillary sinus

50
Q

posterior maxillary wall forms what

A

anterior wall of pterygopalatine fossa and infratemporal fossa

51
Q

maxillary sinusitis associated with what

-maxillary infections can spread where

A

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
Q

the maxillary sinus can be used as surgical approach to reach what

A

SPG

53
Q

how does the maxillary sinus drain

A

by ciliary action, gravity and negative pressure into one or more openings into hiatus semilunaris

54
Q

anterior ethmoidal cells open into what

A

anterior part of hiatus semilunaris

55
Q

middle ethmoidal cells open onto

A

surface of bulla ethmoidalis

56
Q

posterior ethmoidal cells open into

A

superior meatus

57
Q

posterior to sphenoidal sinus

A

pons, basilar artery

58
Q

superior to sphenoidal sinus

A

pituitary

59
Q

anterior to sphenoidal sinus

A

nasal cavity

60
Q

inferior to sphenoidal sinus

A

nasopharynx

61
Q

lateral to sphenoidal sinu

A

internal carotid, V1, and cavernous sinus

Neuroscience I test 2 (8 decks)

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