It gives the cell structure and it gives the cell its shape. And there are three different types of fibers and one of these fibers are our microtubial fibers. So within our centrosome, we have our centrioles. What exactly is a centriole? So the centrosome contains a pair of centrioles that are a cylindrical array of nine triplep microtubules that are connected to one another by special protein connecting fibers. Now, this pattern is commonly known as the nine to three microtubule pattern.