Intermediate Ligamentum Teres Quiz

Q1. Where does the ligamentum teres terminate within the liver region?

• Right hepatic vein
• Common bile duct
• Umbilical portion of the left portal vein
• Inferior vena cava

Q2. How is the ligamentum teres related to the ligamentum venosum on the visceral surface?

• They occupy anterior and posterior parts of the left sagittal fissure, respectively
• They are the same fetal remnant
• Both are branches of the hepatic artery
• Both lie in the gallbladder fossa

Q3. Which fetal circulation function was performed by the left umbilical vein before it became the ligamentum teres?

• It carried oxygenated placental blood toward the fetal liver
• It carried bile from the fetal gallbladder
• It returned deoxygenated blood to the placenta
• It drained the fetal kidney

Q4. What is the relationship between the fetal left umbilical vein and the ductus venosus?

• The ductus venosus carried bile into the umbilical vein
• The umbilical vein arose from the ductus arteriosus
• The two structures were unrelated to fetal circulation
• The ductus venosus provided a channel from the umbilical venous pathway toward the inferior vena cava

Q5. Why can veins near the ligamentum teres enlarge in portal hypertension?

• They drain the inferior vena cava into the portal vein
• They form portal-systemic collateral pathways
• They normally carry bile to the umbilicus
• They are direct branches of the aorta

Q6. What is the relationship of the ligamentum teres to the anatomical left lobe boundary?

• It contributes to an anatomical surface boundary but not the functional hepatic division
• It precisely separates all right and left portal territories
• It marks the boundary of the caudate lobe only
• It has no relationship to liver surface anatomy

Q7. Why is the ligamentum teres useful as a surgical landmark?

• It contains the common bile duct
• It helps identify the umbilical fissure and left portal region
• It defines every Couinaud segment
• It directly marks the right hepatic vein

Q8. Which adult structure represents the obliterated ductus venosus rather than the left umbilical vein?

• Median umbilical ligament
• Falciform ligament
• Ligamentum teres
• Ligamentum venosum

Q9. What is the embryologic origin of the peritoneal fold that carries the ligamentum teres?

• Ventral mesentery
• Neural crest
• Dorsal mesogastrium only
• Urogenital ridge

Q10. How can the ligamentum teres region participate in a portal-systemic anastomosis?

• Paraumbilical portal channels communicate with systemic abdominal wall veins
• The portal vein communicates directly with the aorta
• Hepatic arteries drain into the umbilical vein
• The common bile duct communicates with superficial veins