Duodenal bulb
Bulbus duodeni
- Latin synonym: Ampulla duodeni
- Synonym: Ampulla of duodenum; First part of duodenum; Duodenal cap
- Related terms: Ampulla; Duodenal cap
Definition
The duodenal bulb (duodenal cap; duodenal ampulla) is the very first part of the duodenum which is slightly dilated.
The duodenal bulb is the part of the duodenum that is intraperitoneal and is about 2 cm long. It is mobile and has a mesentery. It is also smooth walled.
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