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FISIOLOGIA DIGESTIVA

FISIOLOGIA DIGESTIVA. FISIOLOGÍA DIGESTIVA (BCM II). Clase 11: Digestión y absorción de nutrientes. Dr. Michel Baró Aliste. Nutrients provided by animal and vegetable products. Digestive process is initiated by sensory signals. The effect of discussion, sight, and smell of food.

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FISIOLOGIA DIGESTIVA

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  1. FISIOLOGIA DIGESTIVA FISIOLOGÍA DIGESTIVA (BCM II) Clase 11: Digestión y absorción de nutrientes Dr. Michel Baró Aliste

  2. Nutrients provided by animal and vegetable products

  3. Digestive process is initiated by sensory signals

  4. The effect of discussion, sight, and smell of food

  5. Oral cavity has important functions in initial processing

  6. The arrival of a swallowed food bolus in the stomach

  7. The emptying of food from the stomach

  8. Passage of acidic, hyperosmolar gastric chyme into duodenum

  9. Cholecystokinin and secretin are of major importance

  10. Macronutrient digestion and absorption proceed at rapid pace 95%

  11. Large bowel: role in carbohydrate digestion and absorption

  12. The primary bile acids, cholic and chenic acid Recirculación entero-hepática de las sales biliares: dos veces por cada comida.

  13. Lipids have highest energy content of 3 macronutrients a-grasos esenciales: ac.linoleico ac.linolénico

  14. The initial event in lipid digestion in the stomach Formación de gotas de emulsión pH 4-5,5

  15. Lipid digestion proceeds at a rapid pace in duodenum

  16. Bile acids are amphipaths

  17. Transport of lipolytic products

  18. The lipolytic products are resynthesized acetil-coA

  19. End products of lipid absorption in the enterocytes

  20. Carbohydrate is the major energy source in the diet 400 g/día Endoglucosidasas +sucrosa +lactosa

  21. Products of starch digestion and two dietary disaccharides

  22. Glucose, galactose, and fructose are not lipid soluble

  23. Protein digestion begins in the stomach

  24. Average daily protein intake is about 70-100 g in adults

  25. The proteolytic enzymes secreted by pancreatic acini

  26. Oligopeptides and amino acids generated by intraluminal proteolysis

  27. Proteolytic enzymes are secreted in vast excess by pancreas bás. bás. arom. neut. alif.

  28. Dipeptides, tripeptides, and amino acids

  29. Amino acid transport systems

  30. Vitamin B12 is one of water-soluble vitamins

  31. Folate is present in food, primarily in polyglutamate form (exopeptidasa) (hidrosolubles)

  32. Daily intake of 3 major minerals in the diet

  33. Trace elements are important constituents of diet

  34. Fin

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