It gives the cell the ability to move things within that cell and it gives the cell the ability to organize the organelles and structures found within that cell. So the cytoskeleton is a very important structure. Now, there are three different types of fibers that are found within the cytoskeleton. We have microfilaments, we have intermediate filaments and also microtubules. And let's begin by discussing the microfilaments. The microfilaments are the thinnest of the three types of protein fibers and their diameter ranges from six to 7.