Aparato Digestivo clase 2
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ESTOMAGO, BAZO, INTESTINO, PANCREAS,
PERITONEO, HIGADO
Enfermería
Dra. Paulina Cifuentes
U. Mayor
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Forma
Caras: Anterior y
posterior
Curvaturas: Menor
Mayor
División - Zonas:
Cardias
Fondo
Cuerpo
Antropilórica
Constitución:
Mucosa
Submucosa
Muscular
Peritoneo
Función:
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Capa Muscular:
- Oblicua- Circular
- Longitudinal
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Relaciones:
Cara anterior Hígado Pared costal y diafragma Pared abdominal
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Relaciones:
Cara posterior
Bazo
Retroperitoneo
Páncreas
Aorta
Glánd. Suprarrenal izq.
Polo sup riñón izq
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Omentos:
Repliegues peritoneales que unen un órgano a otro órgano
Gastrohepático o Menor
Gastrocólico o Mayor
Gastroesplénico
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Relaciones
Curvatura mayor:
-Bazo y pedículo
esplénico
-Omento gastrocólico
-Colon transverso
-Vasos de la curvatura
mayor
Curvatura menor:
-Omento gastrohepático
-Vasos de la curvatura
menor
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IRRIGACION
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BAZO
Ubicación
Irrigación
Totalmente peritonizado
Función
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INTESTINO DELGADO: (+- 6 metros)
PORCIÓN FIJA DUODENO 4 porciones 1ª p. Superior –Bulbo
retroperitoneal 24 cm duodenal
2ª p. Descendente
3ª p. Horizontal
4ª p. Ascendente
PORCIÓN MÓVIL YEYUNO (más larga, más irrigada, más pliegues
peritonizada circulares de la mucosa, mayor absorción)
ILEON (más corta, menos irrigada, menos pliegues
circulares de la mucosa, menor absorción)
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DUODENO
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Relaciones
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Constitución:
-Mucosa:
Pliegues circulares
Papilas duodenales mayor y menor
-Submucosa:
-Muscular: Circular
Longitudinal
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PANCREAS
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Relaciones del Páncreas
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Conductos pancreáticos:
Principal (Wirsung)
Accesorio (Santorini)
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MESENTERIO:
Repliegue peritoneal que une a un órgano con la pared abdominal (posterior)
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Irrigación:
-Arteria Mesentérica
Superior
-Vena Mesentérica
Superior
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INTESTINO GRUESO:
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Constitución:
Mucosa
Submucosa
Muscular : Circular
Longitudinal – Tenias
Peritoneo: -Ciego
-Colon Transverso
Mesocolon transverso
-Colon Sigmoídeo
Mesocolon Sigmoides
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PERITONEOParietal Anterior
Posterior
Visceral
Meso: Une un órgano o víscera a la pared abdominal (posterior), contiene vasos y
nervios (Mesocolon transverso, mesos sigmoides, mesenterio).
Omento o Epiplón: Une un órgano a otro órgano, contiene vasos y nervios
Ligamento: Une un órgano a la pared o a otro órgano. No contiene vasos o
contiene vasos pequeños
RETROPERITONEO: Región ubicada por dorsal al peritoneo parietal posterior
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RELACIÓN DEL PERITONEO CON LOS ÓRGANOS Y VÍSCERAS
Vísceras u órganos Peritonizados: Estómago, Hígado, Bazo, Yeyuno, Ileon,
Ciego, Colon transverso, colon sigmoides
Vísceras u órganos Parcialmente Peritonizados: 1ª y 4ª porción del
duodeno, Páncreas (cola)
Vísceras u órganos Retroperitoneales: Aorta, Vena Cava Inferior,
Riñones, Glándulas suprarrenales,
Mitad de la 1ª y4ª porción del duodeno
2ª y 3ª porción del duodeno,
cabeza y cuerpo del Páncreas,
Colon ascendente y Colon descendente
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