There are a few things to keep in mind when using ngApp: 1  only one AngularJS application can be auto-bootstrapped per HTML document. 2  AngularJS applications cannot be nested within each other.  Do not use a directive that uses transclusion on the same element as ngApp.
The esophagus is the tube that carries food, liquids and saliva from your mouth to the stomach. You may not be aware of your esophagus until you swallow something too large, too hot or too cold. You may also become aware of it when something is wrong.
Science Videos. Science Main Index. The esophagus is a tube connecting from the throat to the stomach. It is sometimes called the gullet. Muscles of the esophagus contract in rhythmic waves, called peristalsis, that push the food along the esophagus downward into the stomach.Read on to learn more about the esophagus, and its role in digestion.cience Videos. Science Main Index. The esophagus is a tube connecting from the throat to the stomach. It is sometimes called the gullet. Muscles of the esophagus contract in rhythmic waves, called peristalsis, that push the food along the esophagus downward into the stomach.