When there is more acidity in the stomach, the pyloric sphincter opens, and when the acidic contents move into the duodenum, acidity levels rise and cause the sphincter to close immediately. 5.

What happens when the pyloric sphincter opens?

With each wave, the pyloric sphincter opens and allows a little bit of chyme to pass into the duodenum. As the duodenum fills, it puts pressure on the pyloric sphincter, causing it to close. The duodenum then uses peristalsis to move the chyme through the rest of the small intestine.

What is the function of pyloric sphincter in stomach?

The pyloric sphincter muscle is responsible for controlling how partially digested food, called chyme, moves from your stomach and into your intestines in a timely manner. This process, known as gastric emptying, should happen at an optimal rate to ensure good digestion.