Fig. 6.

(A) The geometry of the leading edge being considered. The black triangles are the adhesions which are fixed. The leading edge is undergoing wave-like growth dynamics. (B) The magnitude of forces on the adhesions as a function of time. The force is obtained by solving for the stress inside the cell (Eq. (19)). The oscillations follow the oscillations in the growth dynamics. (C, D) The components of the stress tensor, σ_xx and σ_xy, as functions of space. The oscillatory growth dynamics introduces nonuniform stress patterns in the cell. In particular the shear stress, σ_xy, is significant.