Figure 2
From: Low magnitude of tensile stress represses the inflammatory response at intervertebral disc in rats
Representative histologic sections (H&E) of AF in each group. (a) Sham group, the arrangement of collagenous fiber in AF was quite evenly. (b) TS group, collagenous fiber in AF was broken down and malaligned. (c) TSNP group, compared to the TS group, the arrangement of AF in TSNP was more turbulent and the fiber spacing was increased and sparsed. (d) SNP group, collagenous fiber in AF was mixed and lost the original direction (HE stains × 150).