Intermediate Common Iliac Arteries Quiz

Q1. Which structure commonly crosses anterior to the common iliac artery near its bifurcation?

• Thoracic duct
• Main pancreatic duct
• Common bile duct
• Ureter

Q2. Which major venous structure lies posterior to the right common iliac artery near the aortic bifurcation?

• Left renal vein
• Portal vein
• Splenic vein
• Left common iliac vein

Q3. The right common iliac artery is closely related posteriorly to which venous structures?

• Hepatic veins
• Common iliac veins
• Internal jugular veins
• Pulmonary veins

Q4. Why is the relationship between the right common iliac artery and left common iliac vein clinically important?

• The vein passes through the artery
• The artery crosses anterior to the left common iliac vein
• The vessels have no anatomical relationship
• The artery terminates inside the vein

Q5. Which surface landmark corresponds approximately to the level of the aortic bifurcation?

• Transpyloric plane
• Supracristal plane
• Subcostal plane
• Transtubercular plane

Q6. Which nerve is closely related to the common iliac artery near the lumbosacral region?

• Vagus nerve in the neck
• Median nerve
• Phrenic nerve
• Sympathetic trunk

Q7. Which statement best describes branches of the common iliac artery before its terminal division?

• They always give rise to the renal arteries
• They always give rise to the inferior mesenteric artery
• They supply the entire small intestine directly
• They usually give off few or no major named branches

Q8. Where does the external iliac artery begin?

• At the aortic hiatus
• At the renal hilum
• At the bifurcation of the common iliac artery
• At the femoral condyle

Q9. Where does the internal iliac artery begin?

• At the renal artery
• At the celiac trunk
• At the common iliac bifurcation
• At the inguinal ligament

Q10. Which anatomical feature helps explain the unequal lengths of the two common iliac arteries?

• The size of the urinary bladder
• The origin of the inferior mesenteric artery
• The position of the liver alone
• The left-sided position of the abdominal aorta