Representative histological images obtained from verification experiments of three loading modes. The liver tissue was loaded to the target tensile strain levels at (a) 10%, (b) 20%, and (c) 30%, and then unloaded to the reference status (undeformed) to obtain the tissue histology. The liver tissue was loaded to the target compressive strain levels at (d) 10%, (e) 20%, (f) 30%, and (g) 40%, and then unloaded to the reference status (undeformed) to obtain the tissue histology. The liver tissue was loaded to the target shear strain levels at (h) 0.8 rad, (i) 0.9 rad, and (j) 1.0 rad, and then unloaded to the reference status (undeformed) to obtain the tissue histology.