The cytoskeleton is a network of fibers that organizes the structures and activities of the cell. It provides mechanical support and maintains the shape of the cell. The cytoskeleton also provides anchorage for many organelles and helps with cell motility, including flagella and cilia. The three types of fibers in the cytoskeleton are microtubules, microfilaments, and intermediate filaments. Microtubules are the thickest fibers and move chromosomes during cell division. Microfilaments are the thinnest of the fibers and are designed to resist tension. Intermediate filaments are specialized in bearing tension and the most permanent of the fibers.
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