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duodenum

The first, short part of the small intestine, just after the stomach.

doo-uh-DEE-num noun

What it means

A C-shaped tube about 25 cm (10 inches) long that curves around the head of the pancreasPAN-kree-usA long, flat gland behind the stomach that makes digestive enzymes and the hormones insulin and glucagon.pan- allcreas fleshFull entry . Bile and pancreatic juices enter it and mix with food from the stomach, and much chemical digestion happens here. Duodenal ulcers are a common type of peptic ulcer, often linked to H. pylori infection or NSAIDs.

At a glance

Spanishduodeno
Also writtenduodenal

Related terms

ulcer

An open sore where the skin or the lining of an organ has broken down.

pancreas

A long, flat gland behind the stomach that makes digestive enzymes and the hormones insulin and glucagon.

gallbladder

A small pear-shaped sac under the liver that stores bile and releases it to help digest fat.

endoscopy

A procedure that uses a thin, flexible tube with a light and camera to look inside the body.

small intestine

The long, narrow part of the bowel between the stomach and the large intestine, where most digestion and absorption happen.

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