BIOL 243 · The Digestive System · USC Upstate

Digestive System Walkthrough

Follow food from your mouth to the end of the line, and watch it get broken down and absorbed. Go at your own pace. Nothing here is graded.

Speed

Think of it like this

Quick check

Wrong answers are fine here. Read why, then try again.

Dr. Akash Garg · BIOL 243 Human Anatomy & Physiology · Chapter 23, The Digestive System (OpenStax Anatomy & Physiology 2e) · Use the left and right arrow keys to move between steps. Try it hands-on in the Digestion Lab.
Diagrams are simplified and not to scale. Molecules are drawn as simple shapes, and speeds and particle counts are exaggerated so you can see them.