anatomy and physiology of human liver pdf

Anatomy And Physiology Of Human Liver Pdf

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Published: 30.05.2021

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Liver: Anatomy and Functions

Thank you for visiting nature. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser or turn off compatibility mode in Internet Explorer. In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript. Couinaud based his well-known subdivision of the liver into surgical segments on the branching order of portal veins and the location of hepatic veins. However, both segment boundaries and number remain controversial due to an incomplete understanding of the role of liver lobes and vascular physiology on hepatic venous development.

The liver is an organ only found in vertebrates which detoxifies various metabolites , synthesizes proteins and produces biochemicals necessary for digestion and growth. Its other roles in metabolism include the regulation of glycogen storage , decomposition of red blood cells , and the production of hormones. The liver is an accessory digestive organ that produces bile , an alkaline fluid containing cholesterol and bile acids , which helps the breakdown of fat. The gallbladder , a small pouch that sits just under the liver, stores bile produced by the liver which is afterwards moved to the small intestine to complete digestion. It is not yet known how to compensate for the absence of liver function in the long term, although liver dialysis techniques can be used in the short term. Artificial livers are yet to be developed to promote long-term replacement in the absence of the liver. As of [update] , [8] liver transplantation is the only option for complete liver failure.

Anatomy and Function of the Liver

The liver normally weighs between 1. It is the second-largest organ in the body, and is located on the right side of the abdomen. The liver plays a major role in metabolism and has a number of functions in the body, including glycogen storage, plasma protein synthesis, and drug detoxification. It also produces bile, which is important for digestion. The liver is supplied by two main blood vessels on its right lobe: the hepatic artery and the portal vein. The portal vein brings venous blood from the spleen, pancreas, and small intestine so that the liver can process the nutrients and byproducts of food digestion.

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Please understand that our phone lines must be clear for urgent medical care needs. When this changes, we will update this web site. Please know that our vaccine supply is extremely small. The liver is located in the upper right-hand portion of the abdominal cavity, beneath the diaphragm, and on top of the stomach, right kidney, and intestines.

The liver is an organ located in the upper right part of the belly abdomen. It is beneath the diaphragm and on top of the stomach, right kidney, and intestines. The liver has many functions. Click Image to Enlarge.

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What does the liver do?

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Liver , the largest gland in the body, a spongy mass of wedge-shaped lobes that has many metabolic and secretory functions. The liver secretes bile , a digestive fluid; metabolizes proteins, carbohydrates, and fats; stores glycogen , vitamins, and other substances; synthesizes blood-clotting factors; removes wastes and toxic matter from the blood ; regulates blood volume; and destroys old red blood cells. Liver tissue consists of a mass of cells tunneled through with bile ducts and blood vessels. Hepatic cells make up about 60 percent of the tissue and perform more metabolic functions than any other group of cells in the body. Each day the liver secretes about to 1, ml about 1 quart of bile, which contains bile salts needed for the digestion of fats in the diet. Bile is also the medium for excretion of certain metabolic waste products, drugs, and toxic substances. From the liver a duct system carries bile to the common bile duct, which empties into the duodenum of the small intestine and which connects with the gallbladder , where it is concentrated and stored.

An accessory digestion gland, the liver performs a wide range of functions, such as synthesis of bile , glycogen storage and clotting factor production.

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the Liver. Anatomy. The liver is the largest organ of the human body (Figure blood supply to the liver comes from the hepatic artery, branching directly from.

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