Aloha SamPLat,
You can work on the small intestine from any location. Do an internet search or pick up a good anatomy book for a healthy image of the organ you want to work on, that shows it's placement and get used to it's placement, color, and size. The more you build a visual memory of these things, the easier it can be to visualize them when working on the person
Here is an example from
http://www.About.com 's A.D.A.M. Navigator:
Much Love, Shawn
