Intermediate Portal Venous System Quiz

Q1. What is the usual relationship of the portal vein within the hepatoduodenal ligament?

• Posterior to the proper hepatic artery and bile duct
• Posterior to the vertebral column
• Anterior to both the artery and bile duct
• Inside the inferior vena cava

Q2. Which vessel usually lies posterior to the first part of the duodenum?

• Inferior mesenteric artery
• Middle colic artery
• Hepatic portal vein
• Left gonadal vein

Q3. At the porta hepatis, the portal vein typically divides into which branches?

• Right and left portal branches
• Anterior and posterior renal veins
• Right and left hepatic veins only
• Superior and inferior venae cavae

Q4. Which portal-systemic anastomosis occurs near the distal esophagus?

• Left gastric veins with esophageal systemic veins
• Renal veins with pulmonary veins
• Splenic vein with cerebral veins
• Hepatic veins with coronary veins

Q5. Which portal-systemic anastomosis is found around the umbilicus?

• Renal veins with femoral veins
• Paraumbilical veins with superficial abdominal wall veins
• Splenic veins with internal jugular veins
• Hepatic veins with pulmonary veins

Q6. Which portal-systemic anastomosis is associated with the rectal region?

• Portal vein with pulmonary trunk
• Superior rectal vein with middle and inferior rectal veins
• Renal vein with gonadal artery
• Splenic vein with hepatic veins

Q7. What happens to portal venous blood after entering the liver?

• It flows directly into the gallbladder
• It enters the inferior vena cava without entering liver tissue
• It passes through hepatic sinusoids
• It enters the renal glomeruli

Q8. Which vein commonly drains the lesser curvature of the stomach directly into the portal vein?

• Left renal vein
• Left gastric vein
• Hepatic vein
• Inferior phrenic vein

Q9. Which vein usually drains the right side of the colon and small intestine into the portal system?

• Superior mesenteric vein
• Inferior vena cava
• Azygos vein
• Left renal vein

Q10. Which statement best distinguishes portal venous flow from ordinary systemic venous flow?

• Portal blood passes through hepatic sinusoids before entering systemic veins
• Portal veins carry only oxygenated arterial blood
• Portal blood bypasses the liver completely
• Portal blood flows directly from intestine to right atrium