The duodenum, or the first part of the small intestine, connects to the stomach. The duodenum is about 10 in. (25.4 cm) long and curved, almost forming a circle.

Current as of: November 14, 2014

Author: Healthwise Staff

Medical Review: E. Gregory Thompson, MD - Internal Medicine & Jerome B. Simon, MD, FRCPC, FACP - Gastroenterology