Human Liver Organ

The liver, an organ found in all vertebrates, is the largest organ in the human body. It is a spongy, reddish brown glands that lies just below the diaphragm in the abdominal cavity. It serves to metabolize carbohydrates and store them as glycogen, metabolize Lipids (facts, including cholesterol and certain vitamins) and proteins, manufacture a digestive fluid, bile; filter impurities and toxic and destroy old, worn-out red blood cells.

Two large lobes, the right and the left, make up most of the liver; attached to the right lobe are the smaller quadrate and caudate lobes. The lobes are made up of lobules, six sided cells arranged in sheets one cell thick that are closely arrange around in sheets one cell thick, that are closely arranged around blood vessels, blue ducts, lymph vessel and nerves. Certain reticuloen dothelial cells (Kupffer cells) line these lobules and play a role in immunity.

Approximately three sides of each cell are in contact with a blood vessel, and three are adjecent to a bile duct. The bile manufactured by each lobule passes down a common duct, which connects to large ducts that lead to the common hepatic duct. This duct joints with the cystic duct of the Gallbladder and enters the duodenum along with the pancreatic duck of Wirsung.

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