Keep in mind that the prefix cyto or the suffix cyt refers always to cells. Allows the cell to have shape. And here you can see this network as depicted in one way, but here it’s depicted actually much more dramatically. And here you begin to see the complexity of what exists inside the cell. Here are these proteins. These are polymers of proteins called vimentin which are present in very many mesenchymal cells. Here are microtubules made from another kind of protein.