N. trochlearis, IV Flashcards

1
Q

Kerner

A

nc. n. trochlearis

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2
Q

Fibertype

A

somatomotorisk/ somatisk efferent

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3
Q

App. udspring

A

dorsalt på mesencephalon ved pons’ øvre rand

OBS eneste kranienerver der udspringer dorsalt

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4
Q

Intrakranielt

A

snor sig omkring mesencephalon til forsiden og frem

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5
Q

Duraperforation

A

frie kant af tentorium cerebelli

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6
Q

Ekstrakranielt (efter duraperfo)

A

løber lateralt i sinus cavernosus superiort for n. oculomotorius. Gennem fissura orbitalis sup. og frem til m. obliquus sup.

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7
Q

Innerverer

A

m. obliquus sup

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8
Q

Klinik: læsion

A

Læsion medfører dobbeltsyn ipsilateralt
=> øjet kan ikke føres/se lateralt/nedad

Holdes pt.s hoved skråt mod afficeret side, forsvinder dobbeltsyn

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