Portal triad
Portal triad (pronunciation: /ˈpɔːrtəl traɪæd/)
The portal triad, also known as Hepatic triad or portal hepatis, is a distinctive arrangement in the liver anatomy that consists of three main structures: the hepatic artery, portal vein, and bile duct.
Etymology
The term "portal triad" is derived from the Latin words "porta," meaning gate, and "triad," meaning a group of three. This term is used because these structures serve as the gate through which substances enter and leave the liver.
Components
- Hepatic artery: This artery supplies oxygenated blood to the liver.
- Portal vein: This vein carries nutrient-rich blood from the gastrointestinal tract and spleen to the liver.
- Bile duct: This duct transports bile from the liver to the gallbladder and small intestine.
Function
The portal triad plays a crucial role in the liver's function. The hepatic artery and portal vein deliver blood to the liver for filtration, while the bile duct carries away bile, a substance produced by the liver to aid in digestion.
Related Terms
- Liver: The organ in which the portal triad is located.
- Bile: A substance transported by the bile duct in the portal triad.
- Hepatic artery: One of the components of the portal triad.
- Portal vein: One of the components of the portal triad.
- Gastrointestinal tract: The system from which the portal vein carries blood to the liver.
See Also
External links
- Medical encyclopedia article on Portal triad
- Wikipedia's article - Portal triad
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