These Tutorials deal with the digestive tract, accessory digestive organs, the hormones controlling metabolic rate and ailments involving them. Tutorials about healthy function are on top and tutorials about disease are below.

The tutorials labeled NEW should work on your cell phones or tablets.

Some of the tutorials may be in PowerPoint. When these open, they may ask you if you want to enable macros. Say 'yes'. Some are written in the newest version of powerpoint, and therefore will not open in the Internet Explorer browser window. Instead, a dialog box will open and allow you to save them to your computer, so you can use them at your leisure. Please feel free to do so!