CN7 Flashcards

1
Q

facialis kärnor

A

nucleus nervi fascialis (motorik)
nucleus salvatorius superior (körtlar)
NTS (smak)

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2
Q

vilka motoriska grenar har fascialis

A
temporalies
zygomatici
buccales
marginales mandibularis
colli
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3
Q

bana för nerven

A
pontina nucleus
meatus acusticus internus
os temporalis pars petrosa
ganglion geniculi
canalis nervi fascialis
foramen stylomastoideus
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4
Q

andra viktiga avgenar från fascialis

A

petrosus major
stapedius
chorda tympani - löper i mellanörat!!!

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5
Q

vilka muskler innerveras

A

ansiktsmimik
digastricus
stylohyoideus

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6
Q

stapedius

A

m. stapedius innervers: reglering av buller i innerörat

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7
Q

petrosus major

A

via ganglion pterygopalatinum…

parasympatisk innervering gl. lacrimale (V2)

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8
Q

chorda tympani

A

parasympatisk och sensorisk gren som avges i canalis nervi fascialis, löper genom os temporale och genom innerörat

  • sammansmäter med lingualis (V3)

ger smak ant 2/3 tungan

parasympatisk innervering gl. sublingualis, submandibularias

synaps i ganglion submandibulare

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9
Q

när kan fascialis skadas

A

fraktur os petrosus
skada på mellanörat, mastoidinfektion
OP på mellanörat eller parotis

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10
Q

symtom vid fel på fascialis

A

mimikstel
paralys av stapedius ger hyperakustiska problem
minskad tårproduktion och salivproduktion
smak försvinner

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11
Q

ex på perifer fascialis pares vs central

A

parotistumör
borrelios
otitis media

central: infarkt capsula interna

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