Which organ is NOT among the foregut derivatives listed?

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Multiple Choice

Which organ is NOT among the foregut derivatives listed?

Explanation:
In embryology, the gut tube is divided into foregut, midgut, and hindgut, with each part giving rise to specific organs. The foregut forms the esophagus, stomach, proximal part of the duodenum, as well as the liver and biliary system (and pancreas). The small intestine, however, develops mainly from the midgut, including the jejunum and ileum (and the distal duodenum region is typically considered midgut-adjacent). So, the small intestine is not a foregut derivative, while the stomach, liver, and biliary system are.

In embryology, the gut tube is divided into foregut, midgut, and hindgut, with each part giving rise to specific organs. The foregut forms the esophagus, stomach, proximal part of the duodenum, as well as the liver and biliary system (and pancreas). The small intestine, however, develops mainly from the midgut, including the jejunum and ileum (and the distal duodenum region is typically considered midgut-adjacent). So, the small intestine is not a foregut derivative, while the stomach, liver, and biliary system are.

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