Reticular fiber
（重定向自Reticulin）
![A liver biopsy stained with a reticulin stain demonstrating a normal hepatic plate thickness and mild steatosis.](/Images/godic/202502/07/Liver_reticulin4227.jpg")
Reticular fibers, reticular fibres or reticulin is a type of fiber in connective tissue composed of type III collagen secreted by reticular cells. Reticular fibers crosslink to form a fine meshwork (reticulin). This network acts as a supporting mesh in soft tissues such as liver, bone marrow, and the tissues and organs of the lymphatic system.