Reflux of Gastric Contents into the Esophagus Occurs Because of

Multiple Choice

Reflux of gastric contents into the esophagus occurs because of

A) relaxation of the cardiac sphincter.
B) contraction of the pyloric sphincter.
C) spasms of the submucosal layer of the stomach wall.
D) increased hydrochloric acid production by the parietal cells.
E) increased amounts of mucous produced by the stomach.