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11-06 Digestive System Pyloric sphincter- allows 1 teaspoon every 20 seconds Pancreas- secretes: bicarbontae- neutralizes Hcl amylase- (enzyme) breaks down carbohydrates lipase- (enzyme) breaks down lipids (fats) proteolytic enzymes- breaks down proteins/ peptides Gall bladder: stores bile releases bile when food in stomach bile detergent breaks up lipid/lipid interactions produced in liver, stored in gall bladder BILE IS NOT AN ENZYME – this will be on test Green in color Blocked bile duct Bile cant reach small intestine (due to gull stone) Bile backs up into the liver and then blood Converted in blood to bilaruben (yellow molecule) Person turns yellow (jaundice) Small intestines Function – some digestion most absorption of nutrients Plica, villi & microvilli increase in surface area surface area available for absorption of nutrients is = to surface area of a football field