pylorus
(py-LOR-us)
The part of the stomach that connects to the duodenum (first part of the small intestine). The pylorus is a valve that opens and closes during digestion. This allows partly digested food and other stomach contents to pass from the stomach to the small intestine.
Enlarge this image in new windowThe stomach is an organ in the upper abdomen. It can be divided into the cardia and the non-cardia, which includes the fundus, the body, the antrum, and the pylorus. The stomach is part of the digestive system.