Name two retroperitoneal organs.

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Multiple Choice

Name two retroperitoneal organs.

Retroperitoneal organs sit behind the peritoneal lining, between the peritoneum and the posterior abdominal wall, so they aren’t suspended in the abdominal cavity by a mesentery. The kidneys and the pancreas are classic examples of structures that reside in this space. The kidneys lie against the posterior abdominal wall on either side of the spine, and the pancreas sits posterior to the stomach, largely behind the peritoneum (with only the tail layering toward intraperitoneal space in part). The other options don’t fit because they’re not located behind the peritoneum in the abdomen. The esophagus and trachea are in the thoracic cavity, not the abdominal retroperitoneal space. The heart and lungs are in the chest. The stomach and intestines are primarily within the peritoneal cavity and are largely intraperitoneal, supported by mesenteries.

Retroperitoneal organs sit behind the peritoneal lining, between the peritoneum and the posterior abdominal wall, so they aren’t suspended in the abdominal cavity by a mesentery. The kidneys and the pancreas are classic examples of structures that reside in this space. The kidneys lie against the posterior abdominal wall on either side of the spine, and the pancreas sits posterior to the stomach, largely behind the peritoneum (with only the tail layering toward intraperitoneal space in part).

The other options don’t fit because they’re not located behind the peritoneum in the abdomen. The esophagus and trachea are in the thoracic cavity, not the abdominal retroperitoneal space. The heart and lungs are in the chest. The stomach and intestines are primarily within the peritoneal cavity and are largely intraperitoneal, supported by mesenteries.

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