Absorcion intestinal Flashcards

1
Q

enzimas secretadas por el pancreas exocrino y su relacion con los nutrientes

A
  • lipasa: grasas
  • amilasa: carbohidratos
  • proteasa: proteinas
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2
Q

sustancia absorbidas exclusivamente en el ileon distal

A
  • vitamina B12

- sales biliares

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3
Q

como se realiza la absorcion de trigliceridos

A

son convertidos en monogliceridos y acidos grasos libres por la lipasa para ser absorbidos adheridos a las sales biliares

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4
Q

como se absorben las vitaminas liposolubles

A

adheridas a sales biliares

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5
Q

en que forma se absorben los hidratos de carbono

A

siempre en forma de monosacaridos (glucosa, fructosa etc..)

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6
Q

funcion de la amilasa

A

hidrolizar el almidon y otros polisacaridos a monosacaridos y oligosacaridos (lactosa, maltasa etc..)

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7
Q

factor activador de las proteasas pancreaticas

A

las enteroquinasas gastricas

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8
Q

principal sitio de absorcion del acido folico

A

intestino proximal

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9
Q

carcateristicas de las glandulas oxintricas gastricas

A

en cuerpo y fundus; secretan moco, HCl y pepsinogeno

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10
Q

caracteristicas de las glandulas piloricas

A

en antro y piloro; secretan moco y gastrina

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11
Q

que secretan las celulas principales y parietales

A
  • principales: pepsinogeno

- parietales: HCl

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12
Q

funcion de la gastrina y que celulas la producen

A

las celulas G: el mas potente inductor de la secrecion acida

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13
Q

funcion de la somatostatina gastrica y que celulas la producen

A

las celulas D: inhibe la liberacion de gastrina

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