Adhesion strength model. Depiction illustrating the parameters of the adhesion strength model. PatuT cells (left) possess numerous small adhesion patches, which are homogeneously distributed over the entire cell contact area. PatuS cells (right) have a 40% smaller projected cell area than PatuT cells and adhesion patches are located in the cell periphery as well as distributed in fewer and larger segments. For the model the cells are divided into circular zones centered on the cell’s middle and numbered from the cell periphery to its center. The estimated adhesion force from the model was 207 nN and 290 nN for PatuT and PatuS cells, respectively.