Fig. 3

Histological observation of the proximal tibial epiphyseal plate of the rat. Group A: the chondrocytes of the epiphyseal plate are arranged orderly with a clear cytoplasm and nucleus. Groups B and C: focal necrosis of mast cells was found. Group D: the chondrocytes of the epiphyseal plate are disordered with a short cell column, focal necrosis and penetrating necrosis