The pyloric sphincter controls the passage of chyme from the last region of the stomach to the duodenum.
Pyloric sphincter is a ring like muscle present at the junction of the stomach and the intestine. Its function is to regulate the entry of food from the stomach to the intestine. The muscle present is a smooth muscle. The sphincter prevents the backflow of food from intestine to the stomach as it can cause digestive problems.
Chyme is the partially digested food mixed with acids from the stomach that reaches the intestine. The acid is the gastric juices mixed to the food in the stomach. It has a semi-fluid like consistency. The pH level of chyme is approximately 2.
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