Bypass Illustrations

Take a look at the illustrations I'm linking to here.

RYGB - Roux en Y Gastric Bypass
Note that the duodenum does not hug the pancreas as tightly after the operation.

Duodenal Switch
When the duodenum is cut away from the stomach, it and the pancreas do not stay where they were; they move over to the left. Obviously there was some kind of pressure keeping them close to the stomach, and the operation has released that pressure. This operation relieves pressure in two ways: by cutting the duodenum from the stomach, and by moving the ilium away from its previous tightening position at the tail end of the duodenum.

BPD - Bilio Pancreatic Diversion
The duodenum is cut, removed from the stomach, closed off at the top. The duodenum and pancreas then move away. There must be some artistic license here because the pancreas has to stay tight against the duodenum since they share the same arteries. Or do they only share the same arteries in the one little area where they are shown to be touching in this illustration?

A Whole Bunch of Illustrations
Scroll down the page to see the illustrations.