Home▸Medical Technology & Imaging Physics▸Gastric Emptying and Peristalsis: How the Stomach Doles Out Food at a Controlled Rate

🍜 Gastric Emptying and Peristalsis: How the Stomach Doles Out Food at a Controlled Rate

Explore how peristaltic waves, the pyloric sphincter, and hormonal feedback like CCK regulate the slow, controlled release of chyme from the stomach into the small intestine.

Medical Technology & Imaging Physics3DModerate60 FPS

This simulator visualizes how peristaltic waves move down the stomach, how retropropulsion grinds food against the pyloric sphincter, and how the enterogastric reflex slows emptying in response to fat, acid, or concentration in the duodenum.

🔬 What It Demonstrates

🎮 How to Use

Adjust the meal composition and duodenal feedback sensitivity to watch how the wave strength, pyloric opening, and overall emptying rate change in real time.

💡 Did You Know?

Only particles smaller than about 2 millimeters are typically allowed through the pyloric sphincter, meaning a single chunk of food may be churned and retropropelled dozens of times before it is small enough to pass.

⚙ Under the hood

Explore how peristaltic waves, the pyloric sphincter, and hormonal feedback like CCK regulate the slow, controlled release of chyme from the stomach into the small intestine.

gastric emptyingperistalsisdigestionpyloric sphinctergastroparesiscckphysiologygastrointestinal

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install