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GASTRIOINTESTINAL TRACT

GASTRIOINTESTINAL TRACT. FUNCTIONS DIGESTION: transformation of food, absorbable nutrients and compounds mechanical and chemical ABSORPTION: Selective transfer of substances across the intestinal cells PROTECTION: Exclusion of harmful substances EXCRETION: Removal of nondigestable food.

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GASTRIOINTESTINAL TRACT

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  1. GASTRIOINTESTINALTRACT • FUNCTIONS • DIGESTION: transformation of food, absorbable nutrients and compounds • mechanical and chemical • ABSORPTION: Selective transfer of substances across the intestinal cells • PROTECTION: Exclusion of harmful substances • EXCRETION: Removal of nondigestable food

  2. PRIMARY ORGANS • Mouth • Esophagus • Stomach • Small Intestine • Large Intestine

  3. SECONDARY(ACCESSORY) ORGANS • Salivary Glands: digestive enzymes • Liver: Make bile and Filters blood • Pancreas: Digestive enzymes, Alkaline, and Insulin • Gall Bladder: Bile Storage and Alkaline

  4. PRIMARY ORGANS • Mouth: • Digestion: • Starch enzyme Maltose

  5. PRIMARY ORGANS • PHARYNX: canal to esophagus and trachea • ESOPHAGUS: “parastalsis” wavelike motion that moves the food down the esophagus

  6. PRIMARY ORGANS • STOMACH: • Holds about 4 cups • 2.2 PH • Cardiac sphinctor: top of the stomach • Pyloric sphinctor: bottom of the stomach • Protein enzymes Amino Acids HCL CHYME

  7. Nutrients time in stomach • Carbohydrates: 1-2 hours • Protein: 3-5 hours • Fats: 5-7 hours

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