The adult human esophagus ... remaining part of the foregut rapidly elongates with the craniocaudal growth of the embryonic body. In the seventh and eighth weeks, the luminal epithelium ...

When it happens repeatedly and becomes a chronic problem, it can result in "Barrett's esophagus" (BE), a condition in which cells in the epithelial ... esophageal anatomy, and existing in vitro ...

Barrett's esophagus (BE) is a condition in which part of the normal esophageal squamous epithelium is replaced by a metaplastic columnar epithelium as a result of chronic gastroesophageal reflux.