1. From Burger to bowl in 72 hours
Digestion System
From Burger to bowl in 72 hours

2. Purpose:
To enable the absorption of the nutrients needed for growth, maintenance and repair

3. Components of Digestion
Ingestion
= the taking in of nutrients
= enters by mouth
Digestion
= the breakdown of complex organic molecules into smaller components by physical & chemical means
Physical – done by teeth, and stomach
Chemical – done by mouth, stomach,
liver, gallbladder, pancreas, small intestine

4. Absorption The taking up of digested molecules into our cells
Done by stomach, small intestine (villi), large intestine
small intestine (villi)

5. Egestion The removal of waste from the body
Done by large intestine, rectum and anus

6. YouTube videos “Endoscopy of 2 giant gastric ulcers”
“Teenage gastric bypass surgery”