| Multiple biopsies were taken from the duodenum, the gastric antrum, and the distal esophagus. |
| They both reduce the acidity of stomach juices, which reduces irritation of the stomach, duodenum, and esophagus. |
| The same event, however, can take place without a swallow as a reflex response to mechanical stimulation of the esophagus. |
| Normally, this muscle is always contracted, preventing acid from refluxing into the esophagus. |
| The submucosa, muscularis propria and adventitia of the esophagus were normal. |
| Poisoning causes violent pain in the throat, vomiting, and possibly fatal collapse or constriction of the esophagus. |
