Definition

Noun: * Anatomical Structure: The central veins of the liver are the terminal branches of the hepatic veins. They are located at the core of each microscopic hepatic lobule, the liver's functional units. Their primary function is to collect oxygen-depleted but nutrient-rich blood that has filtered through the liver sinusoids (capillary-like vessels) and begin its journey back to the heart.

Usage

• The term is used in medical, anatomical, and biological contexts to describe a specific part of the liver's circulatory system.
• It is often discussed in relation to liver histology (microscopic structure), physiology (function), and pathology (disease).

Examples

• In Anatomy: "In a cross-section of a liver lobule, you can identify the central vein at its center, surrounded by radiating cords of hepatocytes."
• In Physiology: "Blood flows from the portal triads, through the sinusoids, and drains into the central veins of the liver."
• In Pathology: "Certain toxins can cause damage specifically to the endothelial cells lining the central veins, a condition known as veno-occlusive disease."

Advanced Usage

• Central Vein (singular): Often used when referring to the structure within a single lobule. "Each hepatic lobule is organized around a central vein."
• Terminal Hepatic Venules: A more technical synonym emphasizing that these are the final, smallest branches of the hepatic venous system.

Variants and Related Words

• Central Vein (of liver): The singular form.
• Terminal Hepatic Venules: A synonymous term.
• Hepatic Veins: The larger veins into which the central veins ultimately drain.
• Hepatic Lobule: The structural unit containing the central vein.
• Liver Sinusoid: The vascular space where blood exchanges materials with liver cells before entering the central vein.

Synonyms

• Terminal hepatic venules
• Intralobular veins (of the liver)

Notes on Meaning

The term has one primary, specific anatomical meaning. It does not have idiomatic or phrasal verb uses, as it is a technical scientific term.

Noun

1. terminal branches of the hepatic veins that lie in the hepatic lobules and receive blood from the liver sinusoids