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Movement of Food in Stomach:

This is an image showing the movement of food in stomach by peristalsis. After the meal, muscles of the stomach wall mix food with gastric juices and churn it to form chyme. 1-2 hours later, peristaltic waves move the stomach contents towards the pyloric sphincter. 3-4 hours later, the pyloric sphincter opens at intervals to let small quantities of chyme into the duodenum

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License:[Source CIET, NCERT ]Feb. 20, 2017, 11:35 a.m.
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