What is a distinctive characteristic of periodontal ligament fibroblasts?

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Quantity of cellular organellesExistence of actin filaments and ability to alter shapeDimensions of the cellsProduction of collagen fibers

Explanation

Periodontal ligament fibroblasts are uniquely characterized by the presence of actin filaments, which enable them to change their shape. This feature distinguishes them from other fibroblasts, as it supports their role in maintaining periodontal ligament function.