Definition

1. Noun:
   • A major vein that collects blood from the digestive tract, spleen, and pancreas and delivers it to the liver: The portal vein is a key vessel in the hepatic portal system. It transports nutrient-rich but oxygen-poor blood from the gastrointestinal organs to the liver for processing before this blood returns to the general circulation.

Usage

• The term "portal vein" is used in medical, anatomical, and biological contexts to describe this specific circulatory pathway.
• It is typically preceded by the definite article "the" (e.g., portal vein).
• It functions as a subject or object in a sentence.

Examples

• Noun:
  • The surgeon carefully avoided the portal vein during the procedure.
  • A blockage in the portal vein can cause serious health issues, such as portal hypertension.
  • Nutrients absorbed from your food are carried directly to the liver via the portal vein.

Advanced Usage

• "Portal vein thrombosis": A medical condition involving the formation of a blood clot within the portal vein.
  • The patient was diagnosed with portal vein thrombosis.

Variants and Related Words

• Hepatic portal vein: A full synonym for "portal vein," emphasizing its connection to the liver ( is Greek for liver).
• Portal system: Refers to the entire circulatory arrangement where blood passes through two capillary beds (e.g., in the intestines and the liver) before returning to the heart. The portal vein is the central vessel of the hepatic portal system.

Synonyms

• Hepatic portal vein: The complete anatomical term.

Related Phrases

• Portal hypertension: Abnormally high blood pressure in the portal vein system, often a consequence of liver disease.
  • Cirrhosis is a common cause of portal hypertension.

Noun

1. a short vein that carries blood into the liver