anatomia de la medula espinal y meninges
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médula espinalTRANSCRIPT
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ANATOMÍA DE LA MEDULA
ESPINAL
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MENINGES
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CARACTERISTICAS GENERALES
• Piamadre. En contacto con el SN.
• Aracnoides. Intermedia
• Duramadre. En contacto con el hueso.
• Espacios:
▫ Epidural. Exterior a la duramadre
▫ Subdural
▫ Subaracnoideo contiene el LCR
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CARACTERISTICAS GENERALES
• Irrigación.
▫ Meningea media
▫ Oftálmica
▫ Occipitales
▫ Vertebrales.
• Inervación.
▫ Supratentorial. Trigemino
▫ Infratentorial. Vago o neumogastrico.
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LCR
• Funciones:
▫ Amortiguador. Posibles traumatismos.
▫ Proporcionar nutrientes
▫ Eliminar los desechos metabólicos.
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LCR
• PRODUCCION:▫ 70% Plexos coroideos▫ 18% Ultrafiltrado capilar▫ 12% Agua metabolica
• COMPOSICIÓN
▫ Na+
▫ Cl-
▫ K+
▫ Glucosa
▫ Proteínas
• ABSORCIÓN.
▫ Duramadre lo filtra hacia las corrientes venosas.
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GRACIAS