Intraduodenal pressure is greater than intragastric
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B
Intragastric pressure is greater than intraduodenal
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C
Regurgitation pressure is more
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D
None of the above
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Solution
The correct option is B Intragastric pressure is greater than intraduodenal The human alimentary canal is hollow and made up of muscles. The oesophagus opens into the stomach. The part of the stomach into which oesophagus opens is the cardiac part. The stomach leads into the small intestine. The pyloric part of stomach leads into the small intestine. The small intestine is divided into three parts duodenum, jejunum and ileum. Pyloric stomach leads into the duodenum through pyloric sphincter guarded by the pyloric valve. The difference in pressure on two sides of pyloric sphincter will allow passage of food from the stomach to the duodenum. When the intragastric pressure exceeds intraduodenal pressure the contents of stomach pass into the duodenum.