Fig. 2

Initial arrangement of cells. The entire NetLogo graphic interface is shown. The cells at the scratch line are represented by the green cells at the edge of the cell monolayer of blue cells. The slider control for the position of the scratch edge is indicated. A white scratch line also can be switched on to denote where the green cells were located initially as the simulation proceeds. Cells will proceed to migrate into open space. Input controls are shown in the blue-green boxes