Hirnnerven - Durchtrittsstellen Flashcards

1
Q

N olfactorius

A

Lamina cribrosa

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2
Q

N opticus

A

Von Orbita durch Canalis opticus in mittlere Schädelgrube

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3
Q

N oculomotorius

A

Ventral aus Mesencephalon

Durch Fissura orbitalis superior (Anulus tendineus communis) in die Orbita

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4
Q

N trochlearis

A

Dorsal aus Hirnstamm
Durch Fissura orbitalis superior (nicht durch Sehnenring) in die Orbita

Alle Fasern kreuzen zur Gegenseite
Längster intraduraler Verlauf aller drei Augenmuskelnerven

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5
Q

N abducens

A

Nach langem extraduralen Verlauf durch Fissura orbitalis superior (Anulus tendineus communis) in die Orbita

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6
Q

N trigeminus

A

N ophthalmicus: durch Fissura orbitalis superior in die Orbita

N maxillaris: durch Foramen rotundum in die Fossa pterygopalatina

N mandibularis: durch Foramen ovale in die Fossa infratemporalis

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7
Q

N facialis

A

Austritt im Kleinhirnbrückenwinkel
Durch Porus acusticus internus in die Pars petrosa ossis temporale
Spez. viszeroefferente Fasern durch Foramen stylomastoideum
Viszeroefferente und -afferente Fasern durch Fissura petrotympanica

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8
Q

N vestibulocochlearis

A

Vom Innenohr durch Meatus acusticus internus zum Kleinhirnbrückenwinkel

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9
Q

N glossopharyngeus

A

Aus Medulla oblongata

Durch Foramen jugulare

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10
Q

N vagus

A

Aus Medulla oblongata

Durch Foramen jugulare

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11
Q

N accessorius

A

Radix spinalis durch Foramen magnum ins Schädelinnere, Anlagerung Radix cranialis
Austritt durch Foramen jugulare

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12
Q

N hypoglossus

A

Aus Medulla oblongata
Durch Canalis n hypoglossi
Oberhalb des Zungenbeins in die Zungenwurzel

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