Save Big on Coursera Plus. 7,000+ courses at $160 off. Limited Time Only! Grab it Explore the unique microscopic structure of the stomach in this 29-minute video lecture. Discover how the stomach's epithelium differs from other parts of the gastrointestinal tract, and learn about the role of hydrochloric acid in digestion. Understand the protective mechanisms that prevent the stomach from damaging itself while producing this powerful acid. Delve into the intricate histological details that make the stomach a fascinating organ in the digestive system.