NUTR 132 Lecture Notes - Lecture 3: H2 Antagonist, Proton-Pump Inhibitor, Gluten
1 Nov 2016
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Document Summary
Digestive system: functions: digestion, absorption, elimination of wastes, assists immune system, under autonomic control, regulated by nervous and endocrine systems. Large intestine: accessory organs: liver, gallbladder, pancreas. Helps to moisten food, aids in swallowing and digestion: acid (hydrochloric acid) stomach. Aids in digestion and immune protection (kills off pathogens: bile produced in the liver, stored in the gallbladder. Aids in fat digestion: bicarbonate pancreas. Gets released when food hits the small intestine. Mouth: gives you sense of taste (sweet, sour, bitter, salty, umami/savory, mechanical digestion chewing, swallowing, chemical digestion salivary amylase, salivary lipase. Esophagus: allows movement of food from pharynx to stomach, epiglottis prevents food from entering trachea. Holds 4 cups of food, normally: gastric secretions. Mucus, to protect from acidity: mechanical digestion. Chyme passes from stomach into small intestine (duodenum) Pancreas releases pancreatic juice (bicarbonate, pancreatic enzymes) Large intestine: absorption of water, some vitamins and minerals, main function: to prepare digested food remains for excretion, large bacterial population.
