贲门失弛缓症贲门失弛缓症ACHALASIA1Anatomy-esophagusn-Muscular tube-Conduit from the pharynx to the stomachn-Length is defined anatomically,from cricoid cartilage to the gastric orificen-Distance from the incisor 40-45 cm(actual length:M 22-28cm F 2cm shorter)n-Passes behind aortic arch and left main bronchus.n-Enters abdomen through esophageal hiatus 2-4 cm below the diaphragm2 nCourse of the esophagusn-Neck and upper esophagus:left of midlinen-Mid-esophagus:right of midlinen-Lower esophagus:left of midline
