Nervo facial

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Nervo Facial

Nervo FacialA1: Marcelo Madureira montroniPreceptor: Dr. Kenji takemoto

Nervo FacialO nervo facial tem seis segmentos:Segmento 1: Intracraniano (Cisternal)Segmento 2: Meatal (Canal Auditivo Interno) Segmento 3: Labirntico (do CAI at o gnglio geniculado) Segmento 4: Timpnico (do gnglio geniculado at a eminncia piramidal) Segmento 5: Mastoideo (da eminncia piramidal ao forame estilomastoideo) Segmento 6: Extra temporal (do forame estilomastoideo at a diviso em cervicofacial e temporofacial)Facial nerve; Dr Jeremy Jones and Dr Frank Gaillard et al.http://radiopaedia.org/articles/facial-nerve

Nervo FacialCranial nerve nuclei Diagram of nuclei of cranial nerves. Image created by Patrick J. Lynch, medical illustrator. See description page for further details. Author: Patrick LynchO nervo facial surge a partir de ncleos do tronco cerebral.

O ncleo motor est localizado no teto da ponte ntero-lateral.

O ncleo salivatrio superior est situado posterior ao ncleo do motor inervando as glndulas lacrimais, submandibulares e as glndulas sublinguais.

O ncleo do trato solitrio recebe fibras aferentes para o paladar, propriocepo e sensao gustativa.Ncleos da BaseSegmento 1: Intracraniano

Nervo FacialAs fibras motoras do nervo facial formam um joelho em torno do ncleo do nervo abducente e uma protuberncia no cho do quarto ventrculo, o qual conhecido como o colculo facial.

CT and MR imaging of the normal and pathologic conditions of the facial nerveLorenz Jager *, Maximilian ReiserUniversity of Munich, Institute of Clinical Radiology, Klinik Grosshadern, Marchioninistr. 15, 81366 Munich, GermanyReceived 21 June 2001; accepted 26 June 2001

Nervo Facial

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Dr marcelo (Dm) - curso paralelo do facial e do vestibular superiorNervo Facial

As fibras motoras direcionam-se para a ponte ntero-lateral e saem do ngulo pontocerebelar .

As fibras parassimpticas do ncleo salivatrio superior e fibras sensorial do ncleo do trato solitrio juntam-se para formar o nervo intermdio. CT and MR imaging of the normal and pathologic conditions of the facial nerveLorenz Jager *, Maximilian ReiserUniversity of Munich, Institute of Clinical Radiology, Klinik Grosshadern, Marchioninistr. 15, 81366 Munich, GermanyReceived 21 June 2001; accepted 26 June 2001

Nervo FacialOs nervos facial e vestibulococlear tm cursos cisternal e canalicular semelhantes.

O nervo facial e vestibulococlear atravessam a porus acusticus (uma abertura entre a cisterna do ngulo ponto cerebelar e o canal auditivo interno) e passam atravs do canal auditivo interno. Appearance of Normal Cranial Nerves on Steady-State Free Precession MR ImagesSujay Sheth, BA Barton F. Branstetter IV, MD Edward J. Escott, MD

Nervo Facialhttp://www.thebarrow.org/Education_And_Resources/Barrow_Quarterly/203365

Nervo FacialAppearance of Normal Cranial Nerves on Steady-State Free Precession MR ImagesSujay Sheth, BA Barton F. Branstetter IV, MD Edward J. Escott, MD

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Dr marcelo (Dm) - curso paralelo do facial e do vestibular superiorNervo FacialO nervo facial tem seis segmentos nomeados:Segmento 1: Intracraniano (Cisternal)Segmento 2: Meatal (Canal Auditivo Interno) Segmento 3: Labirntico (do CAI at o gnglio geniculado) Segmento 4: Timpnico (do gnglio geniculado at a eminncia piramidal) Segmento 5: Mastoideo (da eminncia piramidal ao forame estilomastoideo) Segmento 6: Extra temporal (do forame estilomastoideo at a diviso em cervicofacial e temporofacial)Facial nerve; Dr Jeremy Jones and Dr Frank Gaillard et al.http://radiopaedia.org/articles/facial-nerve

Nervo FacialSegmento Meatal

Localizado no quadrante ntero-superior, acima da crista falciforme e anterior da barra de Bill.

CT and MR imaging of the normal and pathologic conditions of the facial nerveLorenz Jager *, Maximilian ReiserUniversity of Munich, Institute of Clinical Radiology, Klinik Grosshadern, Marchioninistr. 15, 81366 Munich, GermanyReceived 21 June 2001; accepted 26 June 2001

Nervo FacialO joelho anterior separa o segmento labirintico do timpanico.

O joelho posterior separa o segmento timpnico e o segmento mastoideo. O canal do nervo facial (canal de Falpio) cercado por perineuro, epineuro e peristeo. CT and MR imaging of the normal and pathologic conditions of the facial nerveLorenz Jager *, Maximilian ReiserUniversity of Munich, Institute of Clinical Radiology, Klinik Grosshadern, Marchioninistr. 15, 81366 Munich, GermanyReceived 21 June 2001; accepted 26 June 2001

Nervo FacialO nervo facial tem seis segmentos:Segmento 1: Intracraniano (Cisternal)Segmento 2: Meatal (Canal Auditivo Interno) Segmento 3: Labirntico (do CAI at o gnglio geniculado) Segmento 4: Timpnico (do gnglio geniculado at a eminncia piramidal) Segmento 5: Mastoideo (da eminncia piramidal ao forame estilomastoideo) Segmento 6: Extra temporal (do forame estilomastoideo at a diviso em cervicofacial e temporofacial)Facial nerve; Dr Jeremy Jones and Dr Frank Gaillard et al.http://radiopaedia.org/articles/facial-nerve

Nervo FacialSegmento Labrintico

O segmento labirntico comea no fundus e nas curvas entre a cclea e o vestbulo ao joelho anterior.CT and MR imaging of the normal and pathologic conditions of the facial nerveLorenz Jager *, Maximilian ReiserUniversity of Munich, Institute of Clinical Radiology, Klinik Grosshadern, Marchioninistr. 15, 81366 Munich, GermanyReceived 21 June 2001; accepted 26 June 2001

Nervo Facial

O nervo facial e o intermdio passam superior a cclea (anterior) e entre o vestbulo (posterior)Ento corre de volta posteriormente no gnglio geniculado. aqui que os trs ramos originam: o nervo petroso maior superfical, o nervo petroso menor e o nervo petroso externo.

Facial nerve; Dr Jeremy Jones and Dr Frank Gaillard et al.http://radiopaedia.org/articles/facial-nerve

Nervo Facial

O segmento labirntico, o mais curto. tambm o mais estreito e mais susceptveis a compromisso vascular.

Facial nerve; Dr Jeremy Jones and Dr Frank Gaillard et al.http://radiopaedia.org/articles/facial-nerve

Nervo Facial

O gnglio geniculado est localizado na fossa geniculado, que est rodeado por osso.A cobertura do osso varivel e ausente em 16-18% dos casos. Nestes casos, o gnglio geniculado coberto por dura-mter da fossa craniana.

Facial nerve; Dr Jeremy Jones and Dr Frank Gaillard et al.http://radiopaedia.org/articles/facial-nerve

Nervo FacialO nervo facial tem seis segmentos:Segmento 1: Intracraniano (Cisternal)Segmento 2: Meatal (Canal Auditivo Interno) Segmento 3: Labirntico (do CAI at o gnglio geniculado) Segmento 4: Timpnico (do gnglio geniculado at a eminncia piramidal) Segmento 5: Mastoideo (da eminncia piramidal ao forame estilomastoideo) Segmento 6: Extra temporal (do forame estilomastoideo at a diviso em cervicofacial e temporofacial)Facial nerve; Dr Jeremy Jones and Dr Frank Gaillard et al.http://radiopaedia.org/articles/facial-nerve

Nervo FacialAo longo do segmento mastideo o nervo facial d origem ao nervo da corda do tmpano e o nervo estapdio. O nervo estapdio inerva o msculo estapdio.CT and MR imaging of the normal and pathologic conditions of the facial nerveLorenz Jager *, Maximilian ReiserUniversity of Munich, Institute of Clinical Radiology, Klinik Grosshadern, Marchioninistr. 15, 81366 Munich, GermanyReceived 21 June 2001; accepted 26 June 2001

Nervo FacialO nervo estapdio corre atravs do gnglio tico para o canal pterigide. CT and MR imaging of the normal and pathologic conditions of the facial nerveLorenz Jager *, Maximilian ReiserUniversity of Munich, Institute of Clinical Radiology, Klinik Grosshadern, Marchioninistr. 15, 81366 Munich, GermanyReceived 21 June 2001; accepted 26 June 2001

Nervo FacialCT and MR imaging of the normal and pathologic conditions of the facial nerveLorenz Jager *, Maximilian ReiserUniversity of Munich, Institute of Clinical Radiology, Klinik Grosshadern, Marchioninistr. 15, 81366 Munich, GermanyReceived 21 June 2001; accepted 26 June 2001

Nervo FacialAs fibras parassimpatico pr-sinptico tornam-se fibras parassimpaticas ps-sinpticos para juntar ao nervo maxilar e, finalmente, inervam o glndula lacrimal, bem como pequenas glndulas no nariz ena regio palatina. Alm de fibras parassimpatica, o nervo superficial petroso maior superficial tambm carrega fibras smpaticas do plexo C8 cervical para T2 e fibras motoras para inervar o msculo elevador do vu palatino. CT and MR imaging of the normal and pathologic conditions of the facial nerveLorenz Jager *, Maximilian ReiserUniversity of Munich, Institute of Clinical Radiology, Klinik Grosshadern, Marchioninistr. 15, 81366 Munich, GermanyReceived 21 June 2001; accepted 26 June 2001

Nervo FacialA corda do tmpano passa pelo canniculus da corda do tmpano no ouvido mdio. atravessa a orelha mdia por trs da membrana timpnica e sai do ouvido mdio atravs da fissura petrotimpnica (Glaserian). CT and MR imaging of the normal and pathologic conditions of the facial nerveLorenz Jager *, Maximilian ReiserUniversity of Munich, Institute of Clinical Radiology, Klinik Grosshadern, Marchioninistr. 15, 81366 Munich, GermanyReceived 21 June 2001; accepted 26 June 2001

Nervo Facial

Atravessa a orelha mdia por trs da membrana timpnica e sai do ouvido mdio atravs da fissura petrotimpnica.CT and MR imaging of the normal and pathologic conditions of the facial nerveLorenz Jager *, Maximilian ReiserUniversity of Munich, Institute of Clinical Radiology, Klinik Grosshadern, Marchioninistr. 15, 81366 Munich, GermanyReceived 21 June 2001; accepted 26 June 2001

Nervo FacialTransmite fibras aferentes ao dois teros anteriores da lngua para o gosto e fibras parassimpticas eferentes para as glndula submandibular e sublingual.CT and MR imagi