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GASTROINTESTINAL SYSTEM (DIGESTION (LIVER (BILE, BILE SALTS, ALKALINE…
GASTROINTESTINAL SYSTEM
DIGESTION
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PHARYNX AND ESOPHAGUS
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NATURAL PROCESS
RIPPLING MOVEMENT THAT SQUEEZE FOOD DOWNWARD IN DIGESTIVE TRACT; A CONSTRICTED RING FORMS FIRST IN ONE SECTION, THEN THE NEXT,ETC..,CAUSING WAVES OF CONTRACTION TO SPREAD ALONG ENTIRE CANAL.
STOMACH
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DIGESTION
CARBOHYDRATES DIGESTION CONTINUES IN BODY OF STOMACH, PROTEIN DIGESTION BEGINS IN ANTRUM OF STOMACH.
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MECHANICAL PROCESS
CHURNING
FORWARD AND BACKWARD MOVEMENT OF GASTRIC CONTENTS, MIXING FOOD WITH GASTRIC JUICES TO FORM CHYME.
PERISTALSIS
WAVE STARTING IN BODY OF STOMACH ABOUT THREE PER MINUTE AND SWEEPING TOWARD CLOSED PYLORIC SPHINCTER; AT INTERVALS, STRONG PERISTALTIC WAVES PRESS CHYME PAST SPHINCTER INTO DUODENUM.
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LIVER
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BILE DOES NOT DIGEST ANYTHING BUT BILE SALTS FACILITATE FAT DIGESTION AND ABSORPTION IN DUODENAL LUMEN.
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SMALL INTESTINE
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IN LUMEN, UNDER THE INFLUENCE OF PANCREATIC ENZYMES AND BILE, CARBOHYDRATE AND PROTEIN DIGESTION CONTINUES AND FAT DIGESTION IS COMPLETELY ACCOMPLISHED.
ABSORBTION
SMALL INTESTINE
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DUODENUM
RESPONSIBLE FOR THE CONTINUOUS BREAKING DOWN PROCESS, BUT STILL SOME ABSORPTION PROCESS.
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NUTRIENTS & ABSORPTION
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Electrolytes
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Calcium ,Iron,Potassium Magnesium ,Phosphate, which there through active transport, which consumes energy to transport into the body
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