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| Stomach |
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| The oesophagus opens into the stomach. The stomach lies on the left side of the abdomen. It is a sac-like organ, which is connected to the oesophagus at the anterior by a cardiac sphincter and to the small intestine at the posterior end by a pyloric sphincter. The stomach is an elastic organ with the wall having folds. These folds open out to accommodate more food. It serves to temporarily store the food (upto 4 hours). It has three layers of muscles, unlike the other regions of the alimentary canal, which help in the churning of food. |
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| The epithelial lining of stomach has two types of secretory cells - mucous secreting and gastric juice secreting cells. The epithelium also forms long infolds that act as gastric glands. |
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