ASGE Recognized Industry Associate (ARIA) Training Program OPEN | March 2023-Esophagus and Stomach (in Health)

Video Transcription

Video Summary

The video transcript discusses the esophagus and stomach as part of the gastrointestinal (GI) tract and their role in digestion. Digestion is the breakdown of food into smaller components that can be absorbed by the body. The process of digestion involves both mechanical and chemical mechanisms. Mechanical processes include mastication, peristalsis (contraction and relaxation of muscles to propel food forward), and segmentation (mixing of food with simultaneous contraction of segments). Chemical processes involve the secretion of saliva, gastric acid and juice, pancreatic juice and enzymes, and bile, which aid in digestion. The motility of the GI tract, which is primarily driven by smooth muscles, is crucial for the movement of food. The journey of digestion starts in the mouth, where food is chewed and mixed with saliva, and continues through the esophagus, stomach, and small intestine, with the assistance of organs such as the liver, gallbladder, and pancreas. The video also provides an overview of the structure and function of the esophagus and stomach, including the lower esophageal sphincter, the Z-line at the esophagogastric junction, and the different parts of the stomach. The production of acid in the stomach is regulated by gastrin and histamine signaling pathways. Overall, the video provides a basic understanding of the anatomy and physiology of the esophagus and stomach in relation to digestion. No credits are mentioned in the video transcript.

Asset Subtitle

Sushovan Guha, MD, MA,PhD, FASGE, AGAF

Keywords

esophagus

stomach

digestion

mechanical processes

chemical processes