Small intestine — Science definition
The organ where most chemical digestion is completed and most absorption happens, with enzymes delivered into it by the pancreas and bile by the liver.
Where it is taught
- Digestion, Absorption & Food Molecules — Body Organization, Transport & Movement, Life Science & Scientific Inquiry, Grade 7
In use
Absorption is the movement of those small molecules out of the gut and into the blood, and it happens mostly in the small intestine, which is built for nothing else.
Digestion, Absorption & Food Molecules