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Sumario Resumen de los pares craneales
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Resumen de los pares craneales
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Par Origen real Origen aparente Musculos inervan Artérias TRAYECTO Gangliosasociadas asociados lesiones
I→ sensitivo Envuelto por meninges
olfatorio
II→ sensitivo Envuelto por meninges
vision
Mesencéfalo Entre el Todos menos el cerebelosa Seno cavernoso Paresia
III → motor Coliculos superiores mesencéfalo y la recto externo y el superior (parte superior)→ Ganglio ciliar Diplopia
puente oblicuo superior cerebral hendidura Midriasis
posterior esfenoidal→ anillo ptosis
de Zinn→ orbita
Mesencéfalo Debajo de los Recto externo Seno cavernoso
IV → motor Coliculo inferior Coliculos posteriores (parte superior)→ El ojo se dirige
hendidura medial y
esfenoidal→ orbita superiormente
Núcleo mesencefálico Tronco Seno petroso Ganglio de
Núcleo pontino protuberancia en su superior→ gasser→ gasser
Núcleo espinal cara contralateral cavum de meckel→ 3 (sensitivo)
Núcleo motor ramas (la v3 no
V par → mixto (musculos sinapta)
masticadores) V1→ hendidura
esfenoidal
V2→ agujero
redondo mayor
V3→ agujero oval
1
, Relaciones: 3 ramas terminales Ganglio oftálmico (ciliar) tienen neuronas parasimpáticas
Arteria oftálmica del III par
Frontal (fuera del Lagrimal (fuera del Nasociliar pasa Ramas aferentes:
anillo) ramas: anillo)→ se dirige por el anillo • Raíz simpática → procede del plexo pericarotideo
Supraorbitario a la glandula Ramas: • Raíz sensitiva→ llega al nervio nasal atraves de los
supratroclear lacrimal Nervios ciliares ciliares cortos
V1 largos (fibras • Raiz motora parasimpática→ son las únicas que
OFTALMICO sensitivas) sinaptan en el ganglio (núcleo edinger westphal)
Gânglio
ofltalmico Ramas eferentes:
Nérvio etmoidal • Nervios ciliares cortos → inervan la parte mas
posterior superior del globo ocular
Nérvio nasal
externo
Nérvio nasal
interno
Atraviesa el seno Relaciones→ Ganglio de Meckell (esfenopalatino) Ramas colaterales:
cavernoso( con la Arteria maxilar • Ramos meníngeos
carotida interna)→ Arteria menigea Aferencias: • Ramos orbitarios
agujero redondo media Nervio vidiano(fibras parasimpáticas • Ramo comunicante
mayor→ fosa pterigo Seno maxilar del VII) • Rama cigomática
V2 maxilar Paladar oseo • Ramo esfenopalatino
MAXILAR Eferencias: • Nervio nasal superior
SUPERIOR Nervio esfenopalatino(fibras • Nervio nasopalatino
simpáticas) • Nervio palatino mayor y menor
• Nervio nasofaríngeo
• Ramos dentarios
• Nervio dentarios
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