Canals of Hering

Canals of Hering

The Canals of Hering, also known as Hering's canals, are small ductules in the liver that play a crucial role in the biliary system. These canals are part of the intrahepatic bile duct system and are essential for the transport of bile from the hepatocytes to the larger bile ducts.

Structure

The Canals of Hering are located at the interface between the hepatocytes and the bile ductules. They are lined by both hepatocytes and cholangiocytes, which are the epithelial cells of the bile ducts. This unique lining allows for the transition of bile from the liver cells to the bile ducts.

Function

The primary function of the Canals of Hering is to collect bile produced by the hepatocytes and transport it to the bile ductules. From the bile ductules, bile is then transported to the larger intrahepatic bile ducts, and eventually to the common bile duct, which carries bile to the gallbladder and the duodenum for digestion.

Clinical Significance

Damage or obstruction of the Canals of Hering can lead to various liver diseases, including cholestasis, where bile flow is impaired. This can result in the accumulation of bile acids in the liver, causing liver damage and jaundice. The Canals of Hering are also a site of origin for certain types of liver cancer, such as cholangiocarcinoma.

Regeneration

The Canals of Hering are believed to play a role in liver regeneration. They contain a population of progenitor cells, also known as oval cells, which can differentiate into both hepatocytes and cholangiocytes. This regenerative capacity is particularly important in conditions where the liver is damaged and needs to repair itself.

History

The Canals of Hering are named after Ewald Hering, a German physiologist who first described these structures. His work laid the foundation for understanding the complex anatomy and function of the liver's biliary system.

See Also

• Biliary system
• Hepatocyte
• Cholangiocyte
• Intrahepatic bile duct
• Cholestasis
• Cholangiocarcinoma