alleryStart learning →Which part of the urinary system is not completely retroperitoneal?
AThe two ureters
BThe urinary bladder
CThe right kidney
DThe left kidney
Answer & Solution
Correct answer: B. The urinary bladder
1. Retroperitoneal means lying outside the peritoneal cavity, behind the parietal peritoneum.
2. Both kidneys and both ureters sit completely in that position.
3. The bladder carries a peritoneal covering over its dome, so it is only partly retroperitoneal.
4. That peritoneal dome is what bulges up into the abdomen when the bladder distends with urine.
_Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 25 "The Urinary System", section 25.2 Gross Anatomy of Urine Transport_
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