The cytoskeleton is the protein scaffolding within all cells . It has structures like flagella, cilia and plays an important role in intracellular transport of cell contents, organelles and vesicles and cell division.
Human cells are made up of three kinds of cytoskeleton filaments - microfilaments, intermediate filaments, and microtubules.
The Cytoskeleton supports the shape of cell and interacts intimately with cell membranes and cell regulatory processes.