Superior vena cava, inferior vena cava (IVC), azygos vein and their tributaries. The hepatic veins are seen on the superior portion of the IVC, shortly before it flows into the right atrium, which is not shown.

In human anatomy, the hepatic veins are the blood vessels that drain de-oxygenated blood from the liver and blood cleaned by the liver (from the stomach, pancreas, small intestine and colon) into the inferior vena cava. The superior vena cava (also known as the anterior vena cava) is a large but short vein that carries de-oxygenated blood from the upper half of the body into the heart. ... This article may be too technical for most readers to understand. ... The azygos vein is so named because it is unpaired, having no matching vein on the left side of the body. ... This page is about the muscular organ, the Heart. ... Human anatomy or anthropotomy is a special field within anatomy. ... The arterial system The blood vessels are part of the circulatory system and function to transport blood throughout the body. ... Red blood cells (erythrocytes) are present in the blood and help carry oxygen to the rest of the cells in the body Blood is a circulating tissue composed of fluid plasma and cells (red blood cells, white blood cells, platelets). ... The liver is an organ in vertebrates, including humans. ... In anatomy, the stomach (in ancient Greek στόμαχος) is an organ in the alimentary canal used to digest food. ... The pancreas is a retroperitoneal organ that serves two functions: exocrine - it produces pancreatic juice containing digestive enzymes endocrine - it produces several important hormones // Anatomy The pancreas is a retroperitoneal organ located posterior to the stomach on the posterior abdominal wall. ... Diagram showing the poop shoot In biology the small intestine is the part of the gastrointestinal tract between the stomach and the large intestine (colon). ... Colon has several meanings: colon (anatomy) colon (punctuation) colon (rhetoric) See also Colón This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... This article may be too technical for most readers to understand. ...

They arise from the substance of the liver, more specifically the central vein of the liver lobule. They can be differentiated into two groups, the upper group and lower group.

The upper group typically arises from the posterior aspect of the liver, are three in number and drain the quadrate lobe, and left lobe. The lower group arise from the right lobe and caudate lobe, are variable in number and typically smaller in size relative to the upper group. None of the hepatic veins have valves.

Occlusion of the hepatic veins is known as Budd-Chiari syndrome. In biology, a vein is a blood vessel which returns blood from the microvasculature to the heart. ... In medicine (gastroenterology and hepatology), Budd-Chiari syndrome is the clinical picture caused by occlusion of the hepatic vein. ...

External links

• Hepatic veins - a detailed description - The Encyclopaedia of Medical Imaging Volume II (amershamhealth.com)
• Hepatic Histology: The Lobule - Describes the liver lobule and central vein.
• Hepatic veins - Gray's Anatomy
• Hepatic veins - definition - medterms.com

Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...

Images of the hepatic veins

• Hepatic veins - Magnetic Resonance Angiography (MRA) - University of Michigan
• Hepatic veins - Ultrasound - University of the Health Sciences in Bethesda, Maryland
• 3-D reconstruction of the liver anatomy (for transplantation) - MeVis Distant Services
• Hepatic veins - CT angiogram - Contrast Techniques for Hepatic Multidetector CT Angiography - Havard Medical School.

3D rendered MRI Magnetic resonance imaging (MRI) - also called magnetic resonance tomography (MRT) - is a method of creating images of the inside of opaque organs in living organisms as well as detecting the amount of bound water in geological structures. ... Medical ultrasonography is an ultrasound-based diagnostic imaging technique used to visualize internal organs, their size, structure and their pathological lesions. ...