duodenum

     

In anatomy of the igestive system, the duodenum is a hollow jointed tube about 25-30 cm long connecting the stomach to the jejunum. It is the first and shortest part of the small intestine and it is where most chemical digestion takes place. It begins with the duodenal bulb and ends at the ligament of Treitz. The name duodenum is from the Latin duodenum digitorum, twelve fingers' breadths.

Trivia about duodenum

  • (Jimmy of the Clue Crew shows an anatomical diagram on the monitor.) From the Latin for 12, because it's 12 finger-widths long, this small intestine section extends from the stomach to the jejunum
  • The most common ulcers are those that affect the stomach, or this part of the small intestine
  • Digestive juices are very active in this part of the human small intestine that's joined to the stomach
  • 9 to 11 inches long, it's the first part of the small intestine; "Now with 30% more peptic ulcers!"

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