ASGE Recognized Industry Associate (ARIA) Training Program OPEN | October 2026-Esophagus and Stomach in Health

Video Transcription

Video Summary

The speaker introduces the basics of digestion and the anatomy and physiology of the esophagus and stomach. Digestion begins with the sight of food and involves mechanical processes, such as chewing and muscular movement, and chemical processes, including saliva, stomach acid, enzymes, and bile. Peristalsis moves food forward, while segmentation mixes it.<br /><br />The talk follows food from the mouth through the esophagus to the stomach and onward to the intestines. It describes swallowing, esophageal muscle function, the lower esophageal sphincter’s role in preventing reflux, and the transition from squamous esophageal lining to columnar stomach lining. The speaker also reviews stomach regions and wall layers, emphasizing their importance in endoscopy and endoscopic ultrasound. Finally, she explains how gastrin, histamine, and parietal cells regulate acid secretion, and how antihistamines and proton-pump inhibitors reduce it.

Asset Subtitle

Sepideh Moghadam

Keywords

digestion

esophagus

stomach

peristalsis

acid secretion

endoscopy