Advanced Celiac Trunk Quiz

Q1. What is the anatomical basis of median arcuate ligament compression of the celiac artery?

• The portal vein passes through the celiac artery
• The inguinal ligament compresses the distal celiac artery
• A low median arcuate ligament crosses the proximal celiac artery
• The diaphragm closes the superior mesenteric artery

Q2. If flow through the proximal celiac trunk is reduced, which pathway can provide collateral arterial flow from the superior mesenteric artery?

• Gonadal arterial network
• Pancreaticoduodenal arcades
• Lumbar arterial network
• Marginal artery of the colon only

Q3. Which description best defines a hepatosplenic trunk variant?

• Renal and splenic arteries share a trunk
• Left gastric and inferior mesenteric arteries share a trunk
• Common hepatic and splenic arteries share a trunk
• All foregut arteries arise from the superior mesenteric artery

Q4. Why is preoperative recognition of celiac trunk branching variation important in upper abdominal surgery?

• Celiac variants occur only after surgery
• Only venous anatomy matters during upper abdominal surgery
• The celiac trunk never varies
• Variant anatomy can alter expected arterial courses to upper abdominal organs

Q5. Which artery forms the celiac-side contribution to the pancreaticoduodenal collateral arcade?

• Left colic artery
• Superior pancreaticoduodenal arteries
• Sigmoid arteries
• Inferior mesenteric artery

Q6. A vessel arises from the anterior abdominal aorta near T12 and divides into left gastric, splenic, and common hepatic arteries. Which vessel is described?

• Inferior mesenteric artery
• Celiac trunk
• Median sacral artery
• Superior mesenteric artery

Q7. Which feature best explains why celiac trunk stenosis can alter flow within the pancreaticoduodenal arcades?

• The arcades drain directly into the portal vein
• The arcades are branches of the inferior mesenteric artery only
• The arcades connect only renal arteries
• The arcades connect celiac and superior mesenteric territories

Q8. Which embryologic concept best explains the celiac trunk as a major foregut artery?

• It is a remnant of the umbilical vein
• It develops from the common cardinal veins
• It is derived from the ventral splanchnic arterial system supplying the foregut
• It develops from the internal iliac artery after birth

Q9. During dissection around the celiac trunk origin, which neural structures are likely to be encountered?

• Lumbar plexus within the femoral sheath
• Sacral plexus within the inguinal canal
• Brachial plexus trunks
• Celiac ganglia and celiac plexus

Q10. Which statement best describes the relationship between the celiac trunk and the diaphragm?

• It passes through the esophageal hiatus
• It arises just inferior to the aortic hiatus near the median arcuate ligament
• It arises below the aortic bifurcation
• It travels through the central tendon of the diaphragm