tronco cerebral ok
TRANSCRIPT
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ANTOMIA DESCRIPTIVA DE LASUPERFICIE DELTRONCO ENCEFALICO.
• CARA ANTERIOR•
CARA POSTERIOR• DOS LATERALES
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CARA ANTERIOR• SURCO
BULBOPONTINO.-MEDIAL Y LATERAL
ORIGEN VI,VII,VIII• SURCO
PONTOPEDUNCULAR
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CARA ANTERIOR BULBO
• FISURA MEDIAANTERIOR.
• DECUSACIONDE LASPIRAMIDES
• PIRAMIDES• SURCO ANTERO
LATERAL, XII
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CARA ANTERIOR DELPUENTE
• SURCO BASILAR• LIMITE LATERAL, ORIGEN DEL V
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CARA ANTERIOR DEL MESENCEFALO
• PEDUNCULOSCEREBRALES.
• FOSAINTERPEDUNCULAR
ESPACIO PERFORADO
POSTERIOR
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CARA LATERAL DEL BULBO• OLIVA• SURCO POSTERO LATERAL ORIGEN IX,X,XI
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CARA LATERAL DELMESENCEFALO
• SURCO LATERALDELMESENCEFALO
• SURCOINTERPEDUNCULAR
• TRIGONO DELLEMNISCO
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CARA POSTERIOR DEL TRONCO CEREBRAL
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CARA POSTERIOR DELBULBO
DOS PARTES1.MITADINFERIOR.-
SURCO MEDIALPOSTERIORCORDONES POST
2.MITADSUPERIOR-PEDUNCULOSCEREBELOSOS
-VELO MEDULAR
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CARA POSTERIOR DELMESENCEFALO
• CONSTITIDA POR LALAMINA TECTAL.
• COLICULOSSUPERIORES EINFERIORES
COLICULOS . INFEMERGE IV
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ESTRUCTURA GENERERAL DELENCÉFALO
1.LA SUSTANCIA GRIS FORMA NÚCLEOSREDEADOS DE SUSTANCIA BLANCA.NUCLEOS DEL TRONCO ENCEFÁLICO:-INTERCALADOS-DE ORIGEN-FORMACION RETICULAR2. SUSTANCIA BLANCA FORMA TRACTOS
MIELINIZADOS.
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PRINCIPALES NÚCLEOS TRNCOENCEFÁLICOS
INTERCALADOS EN GRANDES VÍAS
• A NIVEL BULBAR.-
GRACIL Y
CUNEIFORME
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NÚCLEO OLIVAR INFERIOR,MEDIAL,ACCESORIO POSTERIO
O INF
A.M
A P
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NIVEL PONTINO
• NÚCLEOS DEL PUENTE.- SON ANTERIORES
• NÚCLEO OLIVAR SUPERIOR.- ANTEROLATERAL AL
TEGMENTO.
NPUENTE
O SUP
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NÚCLEOS DE ORIGEN DE LOSNERVIOS CRANEALES
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NÚCLEOS MEDIALES ESTRIOMOTORES
• MOTONEURONASIGUALESASTA ANT.MEDULA,
INERVANPRIMEROSMIOTOMOS, SALENPOR N.C.
III,IV,VI,XIIN XII
T.
TRIGONO .
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NÚCLEO DEL NERVIO DELABDUCENS
COLICULOFACIAL
ABDUCENS
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NÚCLEO DEL NERVIO OCULOMOTOR
• EST" EN ELMESENCEFALO,C.S.
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NÚCLEOS PARAS!MPATICO
• FORMADOSPOR N.PREGANGLIONARES, EMERGEM
DE TRONCO:IIII,VII,IX,X.
• NÚCLEO
DORSAL DEL
VAGO, CAUDAL Y LATERAL XII..
INERVA M. LISO Y GL"NDULAS
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NÚCLEOS SALIVATORIOS INFERIOR,SUPERIOR Y NÚCLEO LAGRIMAL
• SUP. AL BULBO
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NÚCLEO OCULOMOTOR ACCESORIO
• MUSCULOCILIAR,ESFINTERDE LA PUPILA
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NÚCLEO AMBIGUO
• CILINDRICO,VERTICAL,GLOSOFARINGEO, VAGO,
ACCESORIO,INERVAN M.ESTRIADA $-% A.
BRA#UIALES
N. AMBIGUO
N CLEO DEL NERVIO DEL
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N CLEO DEL NERVIO DELFACIALEST" EN EL PUENTE DEBAJO ABDUCENS.
N.FACIAL
Ú
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NÚCLEO MOTOR TRIGEMINAL
• EST" EN ELPUENTE,REDONDOINERVANESTRUCTURAS
1 A.BRAN#UIAL
Ú
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NÚCLEOS AFERENTESDORSALES
• CERCA DEL SUELO IV VENTR!CULO, FORMADOS POR N.SENSITIVAS Y SENSOCRIALES.
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NÚCLEOS VESTIBULARES•
SON %, FORMADOS POR SEGUNDAS N. DE LA V!AVESTIBULAR, LAS AFERENCIAS PROCEDEN VIII.
N.VESTIBULARES
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NÚCLEOS COCLEARES
• CERCA DE LOS VESTIBULARES, AFERENCIAS DELVIII.
N.COCLEARES
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NÚCLEOS AFERENTES VENTRALES:DEL NERVIO DEL TRIGEMINO
VA DESDE LA PORCI&N ALTA DE LA MÉDULA ASTA ELCOLICULO SUP. LATEROVENTRAL AL TEGMENTO.
•
N.MESENCEF"LICO
N.PONTINO
N.BULBAR
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