pylorus
/paɪˈlɔrəs/
noun
- The opening from the stomach into the small intestine, which controls the passage of partially digested food.
- During digestion, the pylorus opens and closes to regulate the flow of stomach contents.
- The pylorus acts like a valve, letting food pass from the stomach into the duodenum.
- An ulcer near the pylorus can cause pain and difficulty with digestion.