出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2010/06/18 17:52 UTC 版)
The angle of His is the acute angle created between the cardia at the entrance to the stomach, and the oesophagus. It forms a valve, preventing reflux of duodenal bile, enzymes and stomach acid from entering the oesophagus, where they can cause inflammation. The angle is created by the collar sling fibres and the circular muscles around this (gastro-oesophagal) junction. The angle of His is normally undeveloped in infancy, with the oesophagus making a vertical junction with the stomach, and as a result, reflux of stomach contents is common.