Cilia and Flagella Centrioles. Centrioles are also used in the cell structures cilia and flagella. Cilia are lots of small projections on cells, like little hairs that whip back and forth to move the cell or move material over or around the cell.Cells in the lungs, for example, use cilia to move mucus out of the lungs.entrioles are also used in the cell structures cilia and flagella. Cilia are lots of small projections on cells, like little hairs that whip back and forth to move the cell or move material over or around the cell. Cells in the lungs, for example, use cilia to move mucus out of the lungs.