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The plexus receives pre-ganglionic parasymathetic afferents primarily [1] from the anterior vagal trunk, [1] [2] with a lesser contribution from [1] the posterior vagal trunk. [1] [2] The anterior vagal trunk issues one or more hepatic branches of anterior vagal trunk that pass in the superior portion of the lesser omentum to reach the hepatic plexus.
A liver sinusoid is a type of capillary known as a sinusoidal capillary, discontinuous capillary or sinusoid, that is similar to a fenestrated capillary, having discontinuous endothelium that serves as a location for mixing of the oxygen-rich blood from the hepatic artery and the nutrient-rich blood from the portal vein.
The hepatic branches of anterior vagal trunk are branches of the anterior vagal trunk that provide parasympathetic innervation the liver, [1] [2]: 499 and gallbladder. [2]: 266 Each anterior vagal trunk (it may be doubled or tripled) issues 1-2 hepatic branches which pass through the superior part of the omentum minus to reach and join the hepatic (nervous) plexus [2]: 250–252 before ...
The hepatic vein subsequently drains into the inferior vena cava. The hepatic artery provides 30 to 40% of the oxygen to the liver, while only accounting for 25% of the total liver blood flow. The rest comes from the partially deoxygenated blood from the portal vein. The liver consumes about 20% of the total body oxygen when at rest.
In histology (microscopic anatomy), the lobules of liver, or hepatic lobules, are small divisions of the liver defined at the microscopic scale. The hepatic lobule is a building block of the liver tissue , consisting of portal triads, hepatocytes arranged in linear cords between a capillary network, and a central vein .
"Anatomy diagram: 12581.000-1". Roche Lexicon - illustrated navigator. Elsevier. Archived from the original on 2012-07-22. Anatomy photo:38:12-0201 at the SUNY Downstate Medical Center - "The Visceral Surface of the Liver" Anatomy image:7768 at the SUNY Downstate Medical Center; Anatomy image:8189 at the SUNY Downstate Medical Center
(Lesser omentum labeled at left.) Schematic and enlarged cross-section through the body of a human embryo in the region of the mesogastrium, at end of third month The lesser omentum is extremely thin, and is continuous with the two layers of peritoneum which cover respectively the antero-superior and postero-inferior surfaces of the stomach and ...
proper hepatic artery (entering) hepatic portal vein (entering) The hepatic duct lies in front and to the right, the hepatic artery to the left, and the portal vein behind and between the duct and artery. It also transmits nerves and lymphatics. Sympathetic nerves - these provide afferent pain impulses from the liver and gall bladder to the brain.