Organ system anatomy · USMLE Step 1

A patient has hematuria due to a stone lodged where the ureter crosses the pelvic brim. Which vessel does the ureter cross at this point?

  1. External iliac artery
  2. Internal iliac artery
  3. Femoral artery
  4. Common iliac vein
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Correct answer: External iliac artery

The ureter crosses over the external iliac artery at the pelvic brim. This is a common site of ureteral obstruction.

Difficulty: Medium Question 6 of 20

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