CK-12 Foundation
Ck 12: The Small Intestine
[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will explain how digestion and absorption occur in the small intestine.
OpenSciEd
Open Sci Ed: Net Logo: Villi Absorption
This simulation explores the relationship between the amount of surface area in the small intestine and the rate at which it absorbs food particles into the circulatory system.