Читать книгу The Esophagus - Группа авторов - Страница 142

The phrenoesophageal membrane or “ligament” has a thin lower leaf that runs caudally and attaches to the adventitia of the esophageal wall just above the angle of His. A thicker upper leaf arising from the endothoracic fascia of the diaphragm runs cranially to attach firmly to the esophagus with collagenous extensions that penetrate to the submucosa, at about the level of the squamocolumnar junction [283–285]. This tough ligament serves to limit displacement of the esophagus into the thorax and to draw it back into position while minimizing circumferential traction on the LES. Attenuation of the ligament with age would facilitate the development of hiatus hernia [286].