Effect of gastric contractions on the lower esophageal sphincter.
D000818:Animals; D004285:Dogs; D004943:Esophagogastric Junction / Q000502:physiology*; D005764:Gastroesophageal Reflux / Q000517:prevention & control; D005769:Gastrointestinal Motility; D011312:Pressure; D012007:Rectum / Q000502:physiology; D013270:Stomach / Q000502:physiology*