| | [No title] (Site not responding. Last check: 2007-11-07) |
 | | The correct answer is: Duodenum The superior mesenteric artery crosses over the third part of the duodenum, and the aorta is posterior to the third part of the duodenum. |
 | | When food enters the duodenum from the pyloric sphincter, it enters the ampulla, which is a smooth area of the duodenum containing a high percentage of mucosal cells. |
 | | The descending, horizontal, and ascending portions of the duodenum all have circular folds. |
| www-personal.umich.edu /~benwei/cgi-data/shared/linked/DPLG(PQ).doc (2675 words) |