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neuro exam 2 > nasal cavity and paranasal sinuses > Flashcards

nasal cavity and paranasal sinuses Flashcards

1
Q

paranasal sinuses

A

air-filled

epithelial lined spaces

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2
Q

maxillary sinus

A

largest
in maxilla
drians to semilunar hiatus w/in middle nasal meatus
V2

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3
Q

maxillary sinus relationships

A 
sup- orbit
med- nasal cavitites
inf- max teeth
ant and lat- cheek
post- pterygopalatine fossa
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4
Q

frontal sinus

A

w/in forntal bone
sup to supraciliary arches and nasal bones
open via frontonasal duct to semilunar hiatus w/in middle nasal meatus
V1

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5
Q

frontal sinus relationships

A

sup/post- cranial cavity

inf– nasal cavity/orbit

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6
Q

sphenoidal sinus

A

w/in body of sphenoid
open to spehnoethmoidal reess
V2

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7
Q

sphenoidal sinus relationships

A

sup- cranial cavity
lat- cavernous sinus/cranial cavity
ant/inf- nasopharynx/nasal cavity

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8
Q

ethmoidal sinus

A 
w/in ethmoidal bone
ant, middle, and post air cells
open via:
- ant air cell- semilunar hiatus of nasal meatus
-middle air cell- ethmoidal bulla
-post air cell- sup nasal meatus
V1
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9
Q

ethmoidal sinus relationships

A

sup- cranial cavity
med/inf- nasal cavity
lat- orbit

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10
Q

external nose

A

nares- external openings
nasal, maxilla, and frontal bones
nasal cartilages

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11
Q

nasal cavities- roof

A

ethmoid bone (cribiform plate)
frontal bone
sphenoid bone

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12
Q

nasal cavities- lat wall

A 
ehtmoid- sup and middle conch
inf concha
maxilla
palatine
lacrimal
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13
Q

nasal cavities- floor

A

palatine bone

maxilla

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14
Q

nasal cavities- ant wall

A

nasal cart, nasal bones

nares

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15
Q

post nasal cavities

A

open to nasopharynx vic choanae

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16
Q

nasal cavity- medial wall

A

nasal septum
perpendicular plate of ethmoid
vomer
nasal cart

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17
Q

nasal mucosa

A

resp epi lines bulk of nasal cavity, rich in blood vessels and mucous glands to warm air
olfacotry epi lines sup-post portion

18
Q

infection spread from nose

A 
ant cranial fossa via cribiform plate
nasopharynx
middle ear via pharyngotympanic tube
lacrimal apparatus and conjuctiva via nasolacrimal duct
paranasal sinuses
19
Q

sphenoethmoidal recess

A

area post and sup to sup concha

contains opening for shenoidal sinus

20
Q

superior nasal meatus

A

beneath sup concha

contians opening for ethmoidal sinus

21
Q

middle nasal meatus

A

beneath middle concha

contains bulla ethoidalis, semilunar hiatus, and openings for frontal, maxillary, ant and middle ethmoidal sinuses

22
Q

inferior nasal meatus

A

beneath inf concha

contains opening for nasolacrimal duct

23
Q

aa from internal carotid

A

ant and post ethmoidal from opthalmic
course thru ethmoidal air cells to enter rood of nasal cavity
lateral nasal and septal brr to nasal cavity
provide ethmoidal sinuses
provide external nose

24
Q

aa from external carotid

A

sphnopalatine
greater palatine
facial

25
Q

sphenopalatine

A

terminal br of maxillary
enters nasal cavity via spehnopalatine foramen
provides post lat nasal and septal brr

26
Q

greater palatine

A

br of maxillary
enters nasal cavity via incisive canal
provides nasal septal brr

27
Q

facial a

A

septal brr from sup labial

28
Q

kiesslbach area

A

anastomoses btwn greater palatine, ant ethmoidal, spehnopalatine, facial aa on ant portion of nasal septum

29
Q

venous drainage

A

submucosal venous plexus drains to maxillary, facial, and ophthalmic vv

30
Q

V1

A

enters orbit via sup orbital fissue

GSA to nose and sinuses

31
Q

brr of V1

A

supraorbital and supratrochlear- frontal sinuses
post ethmoidal- ethmoidal sinus
ant ethmoidal- ethmoidal air cells, ant nasal cavity, ant lat wall of cavity, external nasal br to dorsum of nose

32
Q

V2

A

enters pterygopalatine fossa via foramen rotundum

GSA to nose ans sinuses

33
Q

brr of V2

A 
infraorbital
post sup alveolar
pharyngeal
nasopalatine
post sup lat nasal 
post inf lat nasal
34
Q

infraorbital n

A

maxillary sinus

face, lat nose

35
Q

post sup alveolar n

A

maxillary sinus

36
Q

pharyngeal n

A

course thru floor/med wall of sphenoid sinus to innervate it

37
Q

nasopalatine n

A

enters via sphenopalatine foramen and provide nasal septum

to hard palate via incisive canal

38
Q

post sup lat nasal

A

enter via sphenopalatine foramen

innervation to sup lat nasal wall

39
Q

post inf lat nasal n

A

unnamed foramen

innervation to inf lat nasal wall

40
Q

parasympathetic

A

salivatory nucelus -> VII -> greater petrosal n -> extis via hiatus for greater petrosal n -> joins petrosal n to form n of pterygoid canal -> pterygopalatine ganglia in pterygopalatine fossa -> V2

41
Q

lymph drainage

A

ant- submandibular nodes

post- pharynx to retropharyngeal nodes

neuro exam 2 (11 decks)

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