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Digestive System Simulator (2D)

Interactive 2D side-view digestive system: watch a peristaltic wave push food from mouth to stomach to small and large intestine, with sliders for peristalsis rate and food type that change real transit time.

Physics & Mechanics2DEasy60 FPS📱 Mobile-adapted⇄ 3D version

This 2D side-view simulator traces one meal's journey through the human digestive tract: a peristaltic wave carries the food bolus down the esophagus, the stomach churns it into chyme, the coiled small intestine absorbs nutrients into the bloodstream, and the frame-shaped large intestine reabsorbs water before the waste reaches the rectum. Pick a food type — liquid, a mixed solid meal, or a high-fat meal — to see how gastric emptying and total transit time change, and raise the peristalsis rate slider to watch stronger muscle contractions push food through faster.

⚙ Under the hood

Interactive 2D side-view digestive system: a peristaltic wave carries a food bolus from mouth through esophagus, stomach, small and large intestine to the rectum, with sliders for peristalsis rate and food type that change the real-world transit time.

digestive systemperistalsisgastric emptyingsmall intestinelarge intestinetransit time2d

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install