What Is the Duodenum?
Reviewed: Dr. Gromatzky
9. Duodenal Ulcers
Duodenal ulcers are most likely to occur in the first segment of the duodenum. This is partly because the first segment is the first to be exposed to gastric acids coming from the stomach.
It is worth noting that subsequent parts have better protection from the action of gastric acid courtesy of the bicarbonate in the digestive juices, which get into the duodenum within the descending segment. Duodenal ulcers cause terrible general abdominal pain and dyspepsia. Other diseases that can affect the duodenum include celiac disease, duodenitis, and duodenal cancers.
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