Fig. 4.

Predicted classes of cell motion inside a micropipette as a function of the critical cortex thicknesses for unbinding h_b and retraction h_s (Eq. 5). An arbitrary value of the stationary cortex thickness h is chosen. Depending on the value of h_s and h_b, we observe four different regimes: the retraction regime, corresponding to h_b > h > h_s; the oscillatory regime, corresponding to h > h_b > h_s; the saltatory regime (in which the membrane does not actually stop at any time), h_s > h > h_b; the steady flow regime, if h < (h_s,h_b).