Organ system anatomy · USMLE Step 1

Which part of the large intestine is retroperitoneal?

  1. Transverse colon
  2. Ascending colon
  3. Sigmoid colon
  4. Cecum
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Correct answer: Ascending colon

The ascending and descending colon are secondarily retroperitoneal. The transverse and sigmoid colon are intraperitoneal.

Difficulty: Medium Question 11 of 20

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