Intrahepatic bile ducts are part of the outflow system of exocrine bile

Bile

Bile or gall is a bitter-tasting, dark green to yellowish brown fluid, produced by the liver of most vertebrates, that aids the process of digestion of lipids in the small intestine. In many species, bile is stored in the gallbladder and upon eating is discharged into the duodenum...

 product from the liver

Liver

The liver is a vital organ present in vertebrates and some other animals. It has a wide range of functions, including detoxification, protein synthesis, and production of biochemicals necessary for digestion...

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They can be divided into large and small ducts. Examples include:

• Large: left and right hepatic ducts

• Small: interlobular bile ducts
  Interlobular bile ducts
  The interlobular bile ducts carries bile in the liver between the Canals of Hering and the intrahepatic bile ducts. They are part of the interlobular portal triad and can be easily localized by looking for the much larger portal vein. The cells of the ducts are described as cuboidal epithelium...
  
  

Alternatively, they may refer to the ducts found between the interlobular bile ducts and the left and right hepatic ducts. The epithelium of these ducts is described as simple columnar epithelium with dense fibroelastic connective tissue

Connective tissue

"Connective tissue" is a fibrous tissue. It is one of the four traditional classes of tissues . Connective Tissue is found throughout the body.In fact the whole framework of the skeleton and the different specialized connective tissues from the crown of the head to the toes determine the form of...

 and smooth muscle

Smooth muscle

Smooth muscle is an involuntary non-striated muscle. It is divided into two sub-groups; the single-unit and multiunit smooth muscle. Within single-unit smooth muscle tissues, the autonomic nervous system innervates a single cell within a sheet or bundle and the action potential is propagated by...

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