In fact, inside Neuron cells, the location of our centrosome basically determines into which direction the axon will grow on any given Neuron cell. So this makes sense because the microtubules are the largest and the thickest components, the thickest fibers of our cytoskeleton. Remember, the cytoskeleton is composed of three different types of fibers. We have microfilaments, intermediate filaments and our microtubules. And finally, the third function of the centriole. So the centrioles are responsible for forming the flagella and the cilia that our cells have.