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.

ByHealthwise Staff
Primary Medical ReviewerKathleen Romito, MD - Family Medicine
Specialist Medical ReviewerJerome B. Simon, MD, FRCPC, FACP - Gastroenterology
Last RevisedJanuary 28, 2010

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