Download - Meninges
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Dr. Farfán
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MENINGES
TEJIDO NO NERVIOSO
PIAMADRE
ARACNOIDES
DURAMADRE
LEPTOMENINGES
PAQUIMENINGE
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MENINGES
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DURAMADRE
2 HOJAS:
Externa: Endostio
Interna: Lamina meníngea
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PROLONGACIONES DE LA DURAMADRE
1. HOZ DEL CREBRO.
2. TIENDA DEL CEREBELO.
3. HOZ DEL CEREBELO.
4. TIENDA DE LA HIPÓFISIS O DIAFRAGMA DE LA SILLA TURCA.
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HOZ DEL CEREBRO
Apófisis cristagalli.
Tienda del cerebelo.
Borde superior: Seno sagital o longitudinal superior.
Borde inferior: Seno longitudinal inferior.
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TIENDA DEL CEREBELO
Sostiene el lóbulo occipital.
Cubre el cerebelo.
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HOZ DEL CEREBELO
Caudal a la tienda del cerebelo.
Borde superior: Inserta en la cara inferior de la tienda.
Borde posterior: Seno occipital.
Borde anterior libre.
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TIENDA DE LA HIPOFISIS
Circula y horizontal.
Forma un techo dural en la silla turca.
Cubre la hipofisis.
Presenta un orificio para el infundibulo.
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INERVACIÓN DE LA DURAMADRE
N. Trigemino y cervicales.
Fosa craneal anterior: N. oftálmico.
Fosa craneal media: N. maxilar superior e inferior.
Fosa craneal posterior: N. Vago e hipogloso.
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EL CEREBRO NORMALMENTE ES INSENSIBLE.
LAS CEFALALGIAS SUELEN SER DE ORIGEN VASCULAR (INTRACRANELA O EXTRACRANEAL) O DURAL
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VASOS MENINGEOS
RAMAS MENINGEAS ANTERIOR Y POSTERIOR.
ARTERIA MENINGEA MEDIA.
SON NUTRICIOS DE LOS HUESOS CRANEALES
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LEPTOMENIGES
ARACNOIDES
PIAMADRE
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ARACNOIDES
Rodea el encéfalo.
Espacio virtual subdural.
Penetra en las cisuras longitudinales, pero no en los surcos.
Esta recubierta por células aplanadas.
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PIAMADRE
Cubre el encéfalo.
Profundiza entre las circunvoluciones de los hemisferios cerebrales.
Forma la tela coroides de los ventrículos.
Se compone de fibras reticulares y elásticas.
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MENINGES
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MENINGES
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MENINGES
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MENINGES
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MENINGES
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MENINGITIS
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PUNCIÓN LUMBAR
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PUNCIÓN LUMBAR
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MENINGES
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MENINGES
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MENIGES
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MENINGES
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GRACIAS
LEER MENINGES DE ROVIER TOMO IV