Stomach - Digestive System Stomach The stomach is divided...

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Digestive System Stomach The stomach is divided into four areas: Cardia, fundus, body, and pylorus. * Cardia - surrounds the superior opening of the stomach near the esophagus. * Fundus - the ballon-like portion above and to the left of the cardia which acts as a temporary storage area. * Body - the large central portion of the stomach. * Pylorus - the narrow inferior region that leads to the duodenum. The pyloric sphincter is a muscular valve that that controls the flow of food from the stomach to the duodenum and prevents the regurgitation of food from the duodenum to the stomach. Digestion in the Stomach Can be divided into two phases: mechanical and chemical. * Mechanical- the muscular churning of the food contents that mixes it with the gastric juices and forms the liquid mass called chyme. The muscular movement also propels the chyme toward the duodenum, where the pyloric sphincter opens to allow small portions to enter. Digestion in the Stomach
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This note was uploaded on 01/30/2012 for the course BSC BSC1085 taught by Professor Sharonsimpson during the Fall '10 term at Broward College.

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Stomach - Digestive System Stomach The stomach is divided...

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