Insert figure 422 peristalsis muscular contractions

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Unformatted text preview: opening into the stomach What Happens When You Swallow? Insert Figure 4.22 Peristalsis Muscular contractions that move small amounts of food and beverages through intestinal tract Insert Figure 4.23 Stomach Large muscular sack that holds and churns food In stomach, food mixes with gastric juice, becoming chyme Pyloric sphincter controls the rate that chyme is released into the small intestine Insert Figure 4.24 Small Intestine Where most nutrients are digested and absorbed • Duodenum • Jejunum • Ileum Insert Figure 4.26 Accessory Organs Pancreas – produces and secretes many digestive enzymes Liver – processes and stores many nutrients makes cholesterol Gallbladder – stores bile that the liver makes Insert figure 4.21 Figure 4.26 Absorbing Nutrients Water-soluble nutrients enter the capillary of a villus, and travel to the liver via portal vein. Most fat-soluble compounds are formed into chylomicrons, that enter a lacteal o...
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This note was uploaded on 03/27/2013 for the course FOOD AND N 254 taught by Professor Varnon during the Spring '13 term at Southeast Missori State University.

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