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This Concept Map, created with IHMC CmapTools, has information related to: Low & Lee Digestive System (draft), absorb water and other useful substances colon absorb 90% of water & Na & K ions, Digestive System Specialized Compartments for Food Processing Gall Bladder, Digestive System Specialized Compartments for Food Processing Small intestine, mechanical digestion of food teeth tear & crush food into smaller pieces reduction in size of food to increase surface area, Digestive System Specialized Compartments for Food Processing Liver, primary site of digestion & absorption ciricular folds, villi increase in surface area for absorption, Stomach Roles protein digestion, Oesophagus Role conduct food from pharynx to stomach, Digestive System Specialized Compartments for Food Processing Mouth, absorb water and other useful substances bacteria produces vitamin K &B, Mouth Roles chemical digestion of starch, primary site of digestion & absorption pancreatic enzymes (maltase, sucrase, lactase, aminopeptiase) digest into glucose, fructose,galactose & amino acid, liquiefies food muscular sac mixes food with gastric juice, creatingchyme, Digestive System Specialized Compartments for Food Processing Pancreas, Mouth Roles mechanical digestion of food, Pharynx Role area shared by digestive and respiratory system, conduct food from pharynx to stomach muscular tube muscle contraction (peristalsis) in moving food along digestive tract, chemical digestion of starch amylase in saliva carbohydrate digestion, Liver Roles aids in digestion & absorption within small intestine, aids in digestion & absorption within small intestine bile emulsifies fat