answers: pylorus
context: Descending colon The descending colon is the part of the large intestine from the splenic flexure to the beginning of the sigmoid colon. The function of the descending colon in the digestive system is to store the remains of digested food that will be emptied into the rectum. The descending colon begins at the splenic flexure at the upper left part of the abdomen. It passes downward through the left hypochondrium and lumbar regions, along the outer border of the left kidney and ends at the lower left part of the abdomen where it continues as the sigmoid colon. It </s> is divided into four chambers – rumen, reticulum, omasum and abomasum. In vertebrates, the abdomen is a large cavity enclosed by the abdominal muscles, ventrally and laterally, and by the vertebral column dorsally. Lower ribs can also enclose ventral and lateral walls. The abdominal cavity is upper part of the pelvic cavity. It is attached to the thoracic cavity by the diaphragm. Structures such as the aorta, inferior vena cava and esophagus pass through the diaphragm. Both the abdominal and pelvic cavities are lined by a serous membrane known as the parietal peritoneum. This membrane is continuous with the visceral </s> Pylorus The pylorus ( or ), or pyloric part, connects the stomach to the duodenum. The pylorus is considered as having two parts, the "pyloric antrum" (opening to the body of the stomach) and the "pyloric canal" (opening to the duodenum). The "pyloric canal" ends as the "pyloric orifice", which marks the junction between the stomach and the duodenum. The orifice is surrounded by a sphincter, a band of muscle, called the "pyloric sphincter". The word "pylorus" comes from Greek πυλωρός, via Latin. The word "pylorus" in Greek means "gatekeeper", related to "gate" () and is thus linguistically related to
question: the terminal part of the stomach that opens into the duodenum is the