Hepatovenous segment V at a glance
- What it is
- Couinaud segment V is the inferior part of the right anterior section of the liver.
- Location
- It lies in the right lobe, below the transverse plane through the portal bifurcation, between the middle and right hepatic veins and adjacent to the gallbladder fossa.
- Function
- Each Couinaud segment is a functionally independent unit of liver with its own portal triad (portal vein branch, hepatic artery branch, bile duct) and hepatic venous drainage, so it can be resected separately.
- Body system
- Digestive · single, midline structure
- FMA ID
- FMA15743 (Foundational Model of Anatomy)
Key facts
- It lies against the gallbladder bed.
- It is supplied by the right anterior portal branch and drained by the middle hepatic vein.
Clinical relevance
Segments IVb and V are removed with the gallbladder in radical cholecystectomy for gallbladder cancer.
Structures next to the hepatovenous segment v
The nearest named structures in the 3D model, measured from the centre of each part:
- Musculophrenic artery · cardiovascular
- Gallbladder · digestive
- Gastroepiploic vein · cardiovascular
- Gastro-epiploic artery · cardiovascular
- Inferior phrenic artery · cardiovascular
- Stomach · digestive
- Cystic duct · digestive
- Splenic artery · cardiovascular
- Superior phrenic vein · cardiovascular
- Common hepatic duct · digestive
References
- Foundational Model of Anatomy: Hepatovenous segment V (FMA15743). EMBL-EBI Ontology Lookup Service.
- OpenStax. Anatomy and Physiology 2e, §23.1 Overview of the Digestive System. Rice University, 2022.
- Mitsuhashi N. et al. (2009). BodyParts3D: 3D structure database for anatomical concepts. Nucleic Acids Research 37, D782–D785. Data © The Database Center for Life Science, CC BY 4.0.
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