Portal Vein
Portal vein thrombosis is a post-hepatic cause of portal hypertension
What our notes say
- Portal vein thrombosis is a post-hepatic cause of portal hypertension (Internal Medicine 4th Year 1st Semester CAT: HIV and the gut, liver disease and )
- The portal vein remains and carries blood to the liver. (Junior Clerkship in Reproductive Health (MBOG 4200): end of year examination, 4 )
- Portal hypertension: dilated portal vein (over 13 mm), splenomegaly, collaterals and varices, reversed or slow portal flow on Doppler. (Internal Medicine CAT 1 (MBIM 6112), 2019/2020: gastroenterology and hepatology,)
- c) Blood flow towards the portal vein increases because the systemic venous pressure increases (Junior Clerkship in Internal Medicine (MBIM4100) main exam, Paper One: 31 Januar)
- Prehepatic: portal vein thrombosis, splenic vein thrombosis. (Junior Clerkship in Internal Medicine (MBIM4100) main exam, Paper One: 31 Januar)
- Portal vein thrombosis blocks the vein before the liver (pre-hepatic). (Internal Medicine 4th Year 1st Semester CAT: HIV and the gut, liver disease and )
Study material on Portal Vein
- Liver Histology & Physiology
- Liver Histology & Physiology
- Weekly Liver Histology and Physiology Exam - March 7, 2026 (Section A: MCQs)
Practice questions on Portal Vein
Where does blood from the portal vein and hepatic artery mix?
- Bile canaliculi
- Hepatic sinusoids
- Central vein
- Space of Disse
Answer: B. The sinusoids are the capillary-like spaces where oxygenated and deoxygenated blood mix before reaching the central vein.
The portal vein carries blood from which organs to the liver?
- Lungs
- Heart
- Gastrointestinal tract and spleen
- Kidneys
Answer: C. The portal vein brings nutrient-rich, deoxygenated blood from the GI tract and spleen to the liver.
Which of the following receives blood from both the hepatic artery and portal vein?
- Central vein
- Hepatic sinusoids
- Bile canaliculi
- Space of Mall
Answer: B. Sinusoids are the site of mixing for arterial and portal venous blood.